523431936 has 104 divisors (see below), whose sum is σ = 1551047760. Its totient is φ = 174440448.

The previous prime is 523431917. The next prime is 523431949. The reversal of 523431936 is 639134325.

It is a happy number.

523431936 is a `hidden beast` number, since 523 + 43 + 1 + 93 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 523431936.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108226 + ... + 112958.

Almost surely, 2^523431936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 523431936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (775523880).

523431936 is an abundant number, since it is smaller than the sum of its proper divisors (1027615824).

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

523431936 is an equidigital number, since it uses as much as digits as its factorization.

523431936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4766 (or 4738 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The square root of 523431936 is about 22878.6349243131. The cubic root of 523431936 is about 805.9103603513.

The spelling of 523431936 in words is "five hundred twenty-three million, four hundred thirty-one thousand, nine hundred thirty-six".