513829864 has 8 divisors (see below), whose sum is σ = 963431010. Its totient is φ = 256914928.

The previous prime is 513829861. The next prime is 513829873. The reversal of 513829864 is 468928315.

It can be written as a sum of positive squares in only one way, i.e., 401681764 + 112148100 = 20042^2 + 10590^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×513829864² = 528042258276516992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (513829861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32114359 + ... + 32114374.

Almost surely, 2^513829864 is an apocalyptic number.

It is an amenable number.

513829864 is a deficient number, since it is larger than the sum of its proper divisors (449601146).

513829864 is a wasteful number, since it uses less digits than its factorization.

513829864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64228739 (or 64228735 counting only the distinct ones).

The product of its digits is 414720, while the sum is 46.

The square root of 513829864 is about 22667.8155983324. The cubic root of 513829864 is about 800.9519210254.

The spelling of 513829864 in words is "five hundred thirteen million, eight hundred twenty-nine thousand, eight hundred sixty-four".