321052689 has 12 divisors (see below), whose sum is σ = 471603600. Its totient is φ = 210407064.

The previous prime is 321052687. The next prime is 321052691. The reversal of 321052689 is 986250123.

It is an interprime number because it is at equal distance from previous prime (321052687) and next prime (321052691).

It is not a de Polignac number, because 321052689 - 2¹ = 321052687 is a prime.

It is a super-2 number, since 2×321052689² = 206149658228261442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (321052681) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 301779 + ... + 302840.

It is an arithmetic number, because the mean of its divisors is an integer number (39300300).

Almost surely, 2^321052689 is an apocalyptic number.

It is an amenable number.

321052689 is a deficient number, since it is larger than the sum of its proper divisors (150550911).

321052689 is a wasteful number, since it uses less digits than its factorization.

321052689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604684 (or 604681 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 321052689 is about 17917.9432134383. The cubic root of 321052689 is about 684.7395880861.

The spelling of 321052689 in words is "three hundred twenty-one million, fifty-two thousand, six hundred eighty-nine".