325921672 has 8 divisors (see below), whose sum is σ = 611103150. Its totient is φ = 162960832.

The previous prime is 325921667. The next prime is 325921697. The reversal of 325921672 is 276129523.

It can be written as a sum of positive squares in only one way, i.e., 324216036 + 1705636 = 18006^2 + 1306^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20370097 + ... + 20370112.

Almost surely, 2^325921672 is an apocalyptic number.

It is an amenable number.

325921672 is a deficient number, since it is larger than the sum of its proper divisors (285181478).

325921672 is a wasteful number, since it uses less digits than its factorization.

325921672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40740215 (or 40740211 counting only the distinct ones).

The product of its digits is 45360, while the sum is 37.

The square root of 325921672 is about 18053.3008616153. The cubic root of 325921672 is about 688.1837495951.

The spelling of 325921672 in words is "three hundred twenty-five million, nine hundred twenty-one thousand, six hundred seventy-two".