90689050 has 24 divisors (see below), whose sum is σ = 178605756. Its totient is φ = 34141440.

The previous prime is 90689047. The next prime is 90689051. The reversal of 90689050 is 5098609.

It can be written as a sum of positive squares in 6 ways, for example, as 46771921 + 43917129 = 6839^2 + 6627^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90689051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52497 + ... + 54196.

Almost surely, 2^90689050 is an apocalyptic number.

90689050 is a deficient number, since it is larger than the sum of its proper divisors (87916706).

90689050 is a wasteful number, since it uses less digits than its factorization.

90689050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106722 (or 106717 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 90689050 is about 9523.0798589532. The cubic root of 90689050 is about 449.2812394052.

The spelling of 90689050 in words is "ninety million, six hundred eighty-nine thousand, fifty".