328677157 has 4 divisors (see below), whose sum is σ = 335670336. Its totient is φ = 321683980.

The previous prime is 328677131. The next prime is 328677161. The reversal of 328677157 is 751776823.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 328677157 - 2²⁷ = 194459429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328677127) 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, 3496519 + ... + 3496612.

It is an arithmetic number, because the mean of its divisors is an integer number (83917584).

Almost surely, 2^328677157 is an apocalyptic number.

It is an amenable number.

328677157 is a deficient number, since it is larger than the sum of its proper divisors (6993179).

328677157 is an equidigital number, since it uses as much as digits as its factorization.

328677157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6993178.

The product of its digits is 493920, while the sum is 46.

The square root of 328677157 is about 18129.4555075435. The cubic root of 328677157 is about 690.1177121866.

The spelling of 328677157 in words is "three hundred twenty-eight million, six hundred seventy-seven thousand, one hundred fifty-seven".