90655632 has 40 divisors (see below), whose sum is σ = 260216480. Its totient is φ = 30218400.

The previous prime is 90655619. The next prime is 90655637. The reversal of 90655632 is 23655609.

90655632 is a `hidden beast` number, since 90 + 6 + 5 + 563 + 2 = 666.

It is a super-2 number, since 2×90655632² = 16436887226638848, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (90655637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104494 + ... + 105357.

It is an arithmetic number, because the mean of its divisors is an integer number (6505412).

Almost surely, 2^90655632 is an apocalyptic number.

It is an amenable number.

90655632 is an abundant number, since it is smaller than the sum of its proper divisors (169560848).

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

90655632 is a wasteful number, since it uses less digits than its factorization.

90655632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209868 (or 209856 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The square root of 90655632 is about 9521.3251178604. The cubic root of 90655632 is about 449.2260474240.

The spelling of 90655632 in words is "ninety million, six hundred fifty-five thousand, six hundred thirty-two".