1033086661 has 4 divisors (see below), whose sum is σ = 1033193824. Its totient is φ = 1032979500.

The previous prime is 1033086647. The next prime is 1033086671. The reversal of 1033086661 is 1666803301.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1666803301 = 17 ⋅98047253.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1033086661 is a prime.

It is a super-2 number, since 2×1033086661² = 2134536098272257842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1033086611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37515 + ... + 58936.

It is an arithmetic number, because the mean of its divisors is an integer number (258298456).

Almost surely, 2^1033086661 is an apocalyptic number.

It is an amenable number.

1033086661 is a deficient number, since it is larger than the sum of its proper divisors (107163).

1033086661 is an equidigital number, since it uses as much as digits as its factorization.

1033086661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107162.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 1033086661 is about 32141.6654982283. The cubic root of 1033086661 is about 1010.9094383561.

Adding to 1033086661 its reverse (1666803301), we get a palindrome (2699889962).

The spelling of 1033086661 in words is "one billion, thirty-three million, eighty-six thousand, six hundred sixty-one".