320925087 has 54 divisors (see below), whose sum is σ = 553558824. Its totient is φ = 175504320.

The previous prime is 320925079. The next prime is 320925169. The reversal of 320925087 is 780529023.

It is a happy number.

320925087 is a `hidden beast` number, since 320 + 9 + 250 + 87 = 666.

It is not a de Polignac number, because 320925087 - 2³ = 320925079 is a prime.

It is a super-2 number, since 2×320925087² = 205985822931915138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320925047) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 5261037 + ... + 5261097.

Almost surely, 2^320925087 is an apocalyptic number.

320925087 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

320925087 is a deficient number, since it is larger than the sum of its proper divisors (232633737).

320925087 is an equidigital number, since it uses as much as digits as its factorization.

320925087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 320925087 is about 17914.3821272183. The cubic root of 320925087 is about 684.6488597602.

The spelling of 320925087 in words is "three hundred twenty million, nine hundred twenty-five thousand, eighty-seven".