523686072 has 64 divisors (see below), whose sum is σ = 1611348480. Its totient is φ = 138114432.

The previous prime is 523686047. The next prime is 523686083. The reversal of 523686072 is 270686325.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 523686072.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117708 + ... + 122075.

It is an arithmetic number, because the mean of its divisors is an integer number (25177320).

Almost surely, 2^523686072 is an apocalyptic number.

523686072 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

523686072 is an abundant number, since it is smaller than the sum of its proper divisors (1087662408).

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

523686072 is a wasteful number, since it uses less digits than its factorization.

523686072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239812 (or 239808 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 523686072 is about 22884.1882530275. The cubic root of 523686072 is about 806.0407674355.

The spelling of 523686072 in words is "five hundred twenty-three million, six hundred eighty-six thousand, seventy-two".