328007831 has 16 divisors (see below), whose sum is σ = 344227968. Its totient is φ = 312249600.

The previous prime is 328007791. The next prime is 328007833. The reversal of 328007831 is 138700823.

It is a cyclic number.

It is not a de Polignac number, because 328007831 - 2¹⁰ = 328006807 is a prime.

It is a super-2 number, since 2×328007831² = 215178274394649122, 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 (328007833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 588605 + ... + 589161.

It is an arithmetic number, because the mean of its divisors is an integer number (21514248).

Almost surely, 2^328007831 is an apocalyptic number.

328007831 is a deficient number, since it is larger than the sum of its proper divisors (16220137).

328007831 is a wasteful number, since it uses less digits than its factorization.

328007831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 328007831 is about 18110.9864723046. The cubic root of 328007831 is about 689.6489364453.

The spelling of 328007831 in words is "three hundred twenty-eight million, seven thousand, eight hundred thirty-one".