90680576 has 54 divisors (see below), whose sum is σ = 210588210. Its totient is φ = 38857728.

The previous prime is 90680563. The next prime is 90680591. The reversal of 90680576 is 67508609.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 90630400 + 50176 = 9520^2 + 224^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8930 + ... + 16158.

Almost surely, 2^90680576 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90680576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105294105).

90680576 is an abundant number, since it is smaller than the sum of its proper divisors (119907634).

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

90680576 is an equidigital number, since it uses as much as digits as its factorization.

90680576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7259 (or 7238 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 90680576 is about 9522.6349294720. The cubic root of 90680576 is about 449.2672453313.

The spelling of 90680576 in words is "ninety million, six hundred eighty thousand, five hundred seventy-six".