1035998661 has 8 divisors (see below), whose sum is σ = 1381523680. Its totient is φ = 690569712.

The previous prime is 1035998659. The next prime is 1035998681. The reversal of 1035998661 is 1668995301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1035998661 - 2¹ = 1035998659 is a prime.

It is a super-3 number, since 3×1035998661³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1035998661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1035998681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6795 + ... + 46023.

It is an arithmetic number, because the mean of its divisors is an integer number (172690460).

Almost surely, 2^1035998661 is an apocalyptic number.

It is an amenable number.

1035998661 is a deficient number, since it is larger than the sum of its proper divisors (345525019).

1035998661 is an equidigital number, since it uses as much as digits as its factorization.

1035998661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48035.

The product of its (nonzero) digits is 349920, while the sum is 48.

The square root of 1035998661 is about 32186.9330785025. The cubic root of 1035998661 is about 1011.8583767222.

The spelling of 1035998661 in words is "one billion, thirty-five million, nine hundred ninety-eight thousand, six hundred sixty-one".