523309608 has 48 divisors (see below), whose sum is σ = 1430563680. Its totient is φ = 172803744.

The previous prime is 523309607. The next prime is 523309621. The reversal of 523309608 is 806903325.

It is a super-2 number, since 2×523309608² = 547705891650227328, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (523309607) 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, 26260 + ... + 41667.

It is an arithmetic number, because the mean of its divisors is an integer number (29803410).

Almost surely, 2^523309608 is an apocalyptic number.

It is an amenable number.

523309608 is an abundant number, since it is smaller than the sum of its proper divisors (907254072).

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

523309608 is a wasteful number, since it uses less digits than its factorization.

523309608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68046 (or 68039 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 523309608 is about 22875.9613568479. The cubic root of 523309608 is about 805.8475740387.

The spelling of 523309608 in words is "five hundred twenty-three million, three hundred nine thousand, six hundred eight".