90371636 has 12 divisors (see below), whose sum is σ = 158813760. Its totient is φ = 44996280.

The previous prime is 90371621. The next prime is 90371641. The reversal of 90371636 is 63617309.

It is a junction number, because it is equal to n+sod(n) for n = 90371596 and 90371605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46310 + ... + 48221.

It is an arithmetic number, because the mean of its divisors is an integer number (13234480).

Almost surely, 2^90371636 is an apocalyptic number.

It is an amenable number.

90371636 is a deficient number, since it is larger than the sum of its proper divisors (68442124).

90371636 is a wasteful number, since it uses less digits than its factorization.

90371636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94774 (or 94772 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 90371636 is about 9506.3997391231. The cubic root of 90371636 is about 448.7564613973.

The spelling of 90371636 in words is "ninety million, three hundred seventy-one thousand, six hundred thirty-six".