523692090 has 48 divisors (see below), whose sum is σ = 1371570408. Its totient is φ = 138628608.

The previous prime is 523692077. The next prime is 523692097. The reversal of 523692090 is 90296325.

It can be written as a sum of positive squares in 4 ways, for example, as 355963689 + 167728401 = 18867^2 + 12951^2 .

It is not an unprimeable number, because it can be changed into a prime (523692097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8907 + ... + 33566.

Almost surely, 2^523692090 is an apocalyptic number.

523692090 is an abundant number, since it is smaller than the sum of its proper divisors (847878318).

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

523692090 is a wasteful number, since it uses less digits than its factorization.

523692090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42623 (or 42620 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 523692090 is about 22884.3197408182. The cubic root of 523692090 is about 806.0438549944.

The spelling of 523692090 in words is "five hundred twenty-three million, six hundred ninety-two thousand, ninety".