328853631 has 4 divisors (see below), whose sum is σ = 438471512. Its totient is φ = 219235752.

The previous prime is 328853599. The next prime is 328853639. The reversal of 328853631 is 136358823.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 328853631 - 2⁵ = 328853599 is a prime.

It is a super-2 number, since 2×328853631² = 216289421243768322, which contains 22 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 328853631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328853639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54808936 + ... + 54808941.

It is an arithmetic number, because the mean of its divisors is an integer number (109617878).

Almost surely, 2^328853631 is an apocalyptic number.

328853631 is a deficient number, since it is larger than the sum of its proper divisors (109617881).

328853631 is a wasteful number, since it uses less digits than its factorization.

328853631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109617880.

The product of its digits is 103680, while the sum is 39.

The square root of 328853631 is about 18134.3219062638. The cubic root of 328853631 is about 690.2412032174.

The spelling of 328853631 in words is "three hundred twenty-eight million, eight hundred fifty-three thousand, six hundred thirty-one".