325697616 has 30 divisors (see below), whose sum is σ = 911501370. Its totient is φ = 108565824.

The previous prime is 325697597. The next prime is 325697627. The reversal of 325697616 is 616796523.

325697616 is a `hidden beast` number, since 3 + 2 + 569 + 76 + 16 = 666.

It can be written as a sum of positive squares in only one way, i.e., 316697616 + 9000000 = 17796^2 + 3000^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1130751 + ... + 1131038.

It is an arithmetic number, because the mean of its divisors is an integer number (30383379).

Almost surely, 2^325697616 is an apocalyptic number.

325697616 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

325697616 is an abundant number, since it is smaller than the sum of its proper divisors (585803754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

325697616 is a wasteful number, since it uses less digits than its factorization.

325697616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2261803 (or 2261794 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 325697616 is about 18047.0943921729. The cubic root of 325697616 is about 688.0260153314.

The spelling of 325697616 in words is "three hundred twenty-five million, six hundred ninety-seven thousand, six hundred sixteen".