523427986 has 16 divisors (see below), whose sum is σ = 799227936. Its totient is φ = 257042016.

The previous prime is 523427981. The next prime is 523427987. The reversal of 523427986 is 689724325.

It is not an unprimeable number, because it can be changed into a prime (523427981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40870 + ... + 52126.

It is an arithmetic number, because the mean of its divisors is an integer number (49951746).

Almost surely, 2^523427986 is an apocalyptic number.

523427986 is a deficient number, since it is larger than the sum of its proper divisors (275799950).

523427986 is a wasteful number, since it uses less digits than its factorization.

523427986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11673.

The product of its digits is 725760, while the sum is 46.

The square root of 523427986 is about 22878.5485990698. The cubic root of 523427986 is about 805.9083331192.

The spelling of 523427986 in words is "five hundred twenty-three million, four hundred twenty-seven thousand, nine hundred eighty-six".