513673864 has 32 divisors (see below), whose sum is σ = 1052799840. Its totient is φ = 233020800.

The previous prime is 513673861. The next prime is 513673877. The reversal of 513673864 is 468376315.

It is a self number, because there is not a number n which added to its sum of digits gives 513673864.

It is not an unprimeable number, because it can be changed into a prime (513673861) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 40444 + ... + 51604.

It is an arithmetic number, because the mean of its divisors is an integer number (32899995).

Almost surely, 2^513673864 is an apocalyptic number.

It is an amenable number.

513673864 is an abundant number, since it is smaller than the sum of its proper divisors (539125976).

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

513673864 is a wasteful number, since it uses less digits than its factorization.

513673864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11701 (or 11697 counting only the distinct ones).

The product of its digits is 362880, while the sum is 43.

The square root of 513673864 is about 22664.3743350660. The cubic root of 513673864 is about 800.8708558353.

The spelling of 513673864 in words is "five hundred thirteen million, six hundred seventy-three thousand, eight hundred sixty-four".