90136596 has 48 divisors (see below), whose sum is σ = 230243328. Its totient is φ = 27218400.

The previous prime is 90136591. The next prime is 90136603. The reversal of 90136596 is 69563109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90136591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42661 + ... + 44723.

It is an arithmetic number, because the mean of its divisors is an integer number (4796736).

Almost surely, 2^90136596 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 90136596, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115121664).

90136596 is an abundant number, since it is smaller than the sum of its proper divisors (140106732).

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

90136596 is a wasteful number, since it uses less digits than its factorization.

90136596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2412 (or 2410 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 39.

The square root of 90136596 is about 9494.0294922651. The cubic root of 90136596 is about 448.3670792980.

The spelling of 90136596 in words is "ninety million, one hundred thirty-six thousand, five hundred ninety-six".