90308936 has 16 divisors (see below), whose sum is σ = 170059500. Its totient is φ = 44959744.

The previous prime is 90308909. The next prime is 90308969. The reversal of 90308936 is 63980309.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 86676100 + 3632836 = 9310^2 + 1906^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 90308936.

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, 22361 + ... + 26088.

Almost surely, 2^90308936 is an apocalyptic number.

It is an amenable number.

90308936 is a deficient number, since it is larger than the sum of its proper divisors (79750564).

90308936 is a wasteful number, since it uses less digits than its factorization.

90308936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48688 (or 48684 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 90308936 is about 9503.1013884942. The cubic root of 90308936 is about 448.6526547124.

The spelling of 90308936 in words is "ninety million, three hundred eight thousand, nine hundred thirty-six".