1027733381 has 4 divisors (see below), whose sum is σ = 1028779872. Its totient is φ = 1026686892.

The previous prime is 1027733341. The next prime is 1027733387. The reversal of 1027733381 is 1833377201.

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 an emirpimes, since its reverse is a distinct semiprime: 1833377201 = 113 ⋅16224577.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1027733381 is a prime.

It is a super-2 number, since 2×1027733381² = 2112471804843382322, 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 (1027733387) 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, 521771 + ... + 523736.

It is an arithmetic number, because the mean of its divisors is an integer number (257194968).

Almost surely, 2^1027733381 is an apocalyptic number.

It is an amenable number.

1027733381 is a deficient number, since it is larger than the sum of its proper divisors (1046491).

1027733381 is an equidigital number, since it uses as much as digits as its factorization.

1027733381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046490.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 1027733381 is about 32058.2810050695. The cubic root of 1027733381 is about 1009.1602931464.

The spelling of 1027733381 in words is "one billion, twenty-seven million, seven hundred thirty-three thousand, three hundred eighty-one".