328256697 has 4 divisors (see below), whose sum is σ = 437675600. Its totient is φ = 218837796.

The previous prime is 328256693. The next prime is 328256717. The reversal of 328256697 is 796652823.

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 328256697 - 2² = 328256693 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328256693) 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, 54709447 + ... + 54709452.

It is an arithmetic number, because the mean of its divisors is an integer number (109418900).

Almost surely, 2^328256697 is an apocalyptic number.

It is an amenable number.

328256697 is a deficient number, since it is larger than the sum of its proper divisors (109418903).

328256697 is a wasteful number, since it uses less digits than its factorization.

328256697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109418902.

The product of its digits is 1088640, while the sum is 48.

The square root of 328256697 is about 18117.8557506124. The cubic root of 328256697 is about 689.8233090953.

The spelling of 328256697 in words is "three hundred twenty-eight million, two hundred fifty-six thousand, six hundred ninety-seven".