90599436 has 36 divisors (see below), whose sum is σ = 229304712. Its totient is φ = 30161664.

The previous prime is 90599413. The next prime is 90599437. The reversal of 90599436 is 63499509.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 90599391 and 90599400.

It is not an unprimeable number, because it can be changed into a prime (90599437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52540 + ... + 54236.

Almost surely, 2^90599436 is an apocalyptic number.

It is an amenable number.

90599436 is an abundant number, since it is smaller than the sum of its proper divisors (138705276).

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

90599436 is a wasteful number, since it uses less digits than its factorization.

90599436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3190 (or 3185 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 45.

The square root of 90599436 is about 9518.3736005685. The cubic root of 90599436 is about 449.1332055179.

The spelling of 90599436 in words is "ninety million, five hundred ninety-nine thousand, four hundred thirty-six".