523894964 has 12 divisors (see below), whose sum is σ = 917120484. Its totient is φ = 261860544.

The previous prime is 523894937. The next prime is 523894997. The reversal of 523894964 is 469498325.

It can be written as a sum of positive squares in 2 ways, for example, as 349390864 + 174504100 = 18692^2 + 13210^2 .

It is a super-2 number, since 2×523894964² = 548931866609122592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7079 + ... + 33134.

It is an arithmetic number, because the mean of its divisors is an integer number (76426707).

Almost surely, 2^523894964 is an apocalyptic number.

It is an amenable number.

523894964 is a deficient number, since it is larger than the sum of its proper divisors (393225520).

523894964 is a wasteful number, since it uses less digits than its factorization.

523894964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43474 (or 43472 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 50.

The square root of 523894964 is about 22888.7519100540. The cubic root of 523894964 is about 806.1479264724.

The spelling of 523894964 in words is "five hundred twenty-three million, eight hundred ninety-four thousand, nine hundred sixty-four".