90625860 has 72 divisors (see below), whose sum is σ = 296052120. Its totient is φ = 22307328.

The previous prime is 90625859. The next prime is 90625883. The reversal of 90625860 is 6852609.

It can be written as a sum of positive squares in 4 ways, for example, as 2566404 + 88059456 = 1602^2 + 9384^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17025 + ... + 21704.

It is an arithmetic number, because the mean of its divisors is an integer number (4111835).

Almost surely, 2^90625860 is an apocalyptic number.

90625860 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

90625860 is an abundant number, since it is smaller than the sum of its proper divisors (205426260).

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

90625860 is a wasteful number, since it uses less digits than its factorization.

90625860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38757 (or 38752 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 90625860 is about 9519.7615516356. The cubic root of 90625860 is about 449.1768656213.

The spelling of 90625860 in words is "ninety million, six hundred twenty-five thousand, eight hundred sixty".