328571885 has 32 divisors (see below), whose sum is σ = 419040000. Its totient is φ = 246951936.

The previous prime is 328571879. The next prime is 328571899. The reversal of 328571885 is 588175823.

It is not a de Polignac number, because 328571885 - 2¹⁰ = 328570861 is a prime.

It is a super-2 number, since 2×328571885² = 215918967224906450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1651016 + ... + 1651214.

It is an arithmetic number, because the mean of its divisors is an integer number (13095000).

Almost surely, 2^328571885 is an apocalyptic number.

It is an amenable number.

328571885 is a deficient number, since it is larger than the sum of its proper divisors (90468115).

328571885 is a wasteful number, since it uses less digits than its factorization.

328571885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485.

The product of its digits is 537600, while the sum is 47.

The square root of 328571885 is about 18126.5519335587. The cubic root of 328571885 is about 690.0440250562.

The spelling of 328571885 in words is "three hundred twenty-eight million, five hundred seventy-one thousand, eight hundred eighty-five".