90869960 has 16 divisors (see below), whose sum is σ = 204457500. Its totient is φ = 36347968.

The previous prime is 90869953. The next prime is 90870007. The reversal of 90869960 is 6996809.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 84529636 + 6340324 = 9194^2 + 2518^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1135835 + ... + 1135914.

Almost surely, 2^90869960 is an apocalyptic number.

It is an amenable number.

90869960 is an abundant number, since it is smaller than the sum of its proper divisors (113587540).

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

90869960 is a wasteful number, since it uses less digits than its factorization.

90869960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2271760 (or 2271756 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 47.

The square root of 90869960 is about 9532.5736294036. The cubic root of 90869960 is about 449.5797887978.

The spelling of 90869960 in words is "ninety million, eight hundred sixty-nine thousand, nine hundred sixty".