328627957 has 16 divisors (see below), whose sum is σ = 384048000. Its totient is φ = 281087520.

The previous prime is 328627939. The next prime is 328627963. The reversal of 328627957 is 759726823.

It is not a de Polignac number, because 328627957 - 2²³ = 320239349 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a self number, because there is not a number n which added to its sum of digits gives 328627957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328627987) 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, 260394 + ... + 261652.

It is an arithmetic number, because the mean of its divisors is an integer number (24003000).

Almost surely, 2^328627957 is an apocalyptic number.

It is an amenable number.

328627957 is a deficient number, since it is larger than the sum of its proper divisors (55420043).

328627957 is an equidigital number, since it uses as much as digits as its factorization.

328627957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2041 (or 2027 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 49.

The square root of 328627957 is about 18128.0985489378. The cubic root of 328627957 is about 690.0832756734.

The spelling of 328627957 in words is "three hundred twenty-eight million, six hundred twenty-seven thousand, nine hundred fifty-seven".