90601636 has 24 divisors (see below), whose sum is σ = 171979416. Its totient is φ = 41594880.

The previous prime is 90601607. The next prime is 90601649. The reversal of 90601636 is 63610609.

90601636 = T₁₂₀ + T₁₂₁ + ... + T₈₁₆.

It can be written as a sum of positive squares in 4 ways, for example, as 15952036 + 74649600 = 3994^2 + 8640^2 .

It is a junction number, because it is equal to n+sod(n) for n = 90601598 and 90601607.

It is an unprimeable number.

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, 13461 + ... + 19036.

It is an arithmetic number, because the mean of its divisors is an integer number (7165809).

Almost surely, 2^90601636 is an apocalyptic number.

It is an amenable number.

90601636 is a deficient number, since it is larger than the sum of its proper divisors (81377780).

90601636 is a wasteful number, since it uses less digits than its factorization.

90601636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32559 (or 32557 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 90601636 is about 9518.4891658288. The cubic root of 90601636 is about 449.1368408792.

The spelling of 90601636 in words is "ninety million, six hundred one thousand, six hundred thirty-six".