513843772 has 12 divisors (see below), whose sum is σ = 968397976. Its totient is φ = 237158640.

The previous prime is 513843763. The next prime is 513843791. The reversal of 513843772 is 277348315.

It is a happy number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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, 4940754 + ... + 4940857.

Almost surely, 2^513843772 is an apocalyptic number.

513843772 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

513843772 is a deficient number, since it is larger than the sum of its proper divisors (454554204).

513843772 is a wasteful number, since it uses less digits than its factorization.

513843772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9881628 (or 9881626 counting only the distinct ones).

The product of its digits is 141120, while the sum is 40.

The square root of 513843772 is about 22668.1223748241. The cubic root of 513843772 is about 800.9591475022.

The spelling of 513843772 in words is "five hundred thirteen million, eight hundred forty-three thousand, seven hundred seventy-two".