90536810 has 96 divisors (see below), whose sum is σ = 208392912. Its totient is φ = 28062720.

The previous prime is 90536777. The next prime is 90536813. The reversal of 90536810 is 1863509.

It can be written as a sum of positive squares in 8 ways, for example, as 305809 + 90231001 = 553^2 + 9499^2 .

It is a super-2 number, since 2×90536810² = 16393827929952200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90536813) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 388454 + ... + 388686.

Almost surely, 2^90536810 is an apocalyptic number.

90536810 is an abundant number, since it is smaller than the sum of its proper divisors (117856102).

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

90536810 is a wasteful number, since it uses less digits than its factorization.

90536810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 90536810 is about 9515.0832891783. The cubic root of 90536810 is about 449.0296953093.

The spelling of 90536810 in words is "ninety million, five hundred thirty-six thousand, eight hundred ten".