325787616 has 384 divisors, whose sum is σ = 1219276800. Its totient is φ = 82183680.

The previous prime is 325787573. The next prime is 325787659. The reversal of 325787616 is 616787523.

325787616 is a `hidden beast` number, since 3 + 2 + 578 + 76 + 1 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (325787573) and next prime (325787659).

It is a super-2 number, since 2×325787616² = 212275141477926912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3925111 + ... + 3925193.

It is an arithmetic number, because the mean of its divisors is an integer number (3175200).

Almost surely, 2^325787616 is an apocalyptic number.

325787616 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 325787616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (609638400).

325787616 is an abundant number, since it is smaller than the sum of its proper divisors (893489184).

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

325787616 is a wasteful number, since it uses less digits than its factorization.

325787616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 165 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 325787616 is about 18049.5876961220. The cubic root of 325787616 is about 688.0893835555.

The spelling of 325787616 in words is "three hundred twenty-five million, seven hundred eighty-seven thousand, six hundred sixteen".