513628964 has 6 divisors (see below), whose sum is σ = 898850694. Its totient is φ = 256814480.

The previous prime is 513628963. The next prime is 513628979. The reversal of 513628964 is 469826315.

It can be written as a sum of positive squares in only one way, i.e., 503643364 + 9985600 = 22442^2 + 3160^2 .

It is not an unprimeable number, because it can be changed into a prime (513628961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64203617 + ... + 64203624.

It is an arithmetic number, because the mean of its divisors is an integer number (149808449).

Almost surely, 2^513628964 is an apocalyptic number.

It is an amenable number.

513628964 is a deficient number, since it is larger than the sum of its proper divisors (385221730).

513628964 is a wasteful number, since it uses less digits than its factorization.

513628964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128407245 (or 128407243 counting only the distinct ones).

The product of its digits is 311040, while the sum is 44.

The square root of 513628964 is about 22663.3837720672. The cubic root of 513628964 is about 800.8475205690.

The spelling of 513628964 in words is "five hundred thirteen million, six hundred twenty-eight thousand, nine hundred sixty-four".