513993970 has 48 divisors (see below), whose sum is σ = 1095202368. Its totient is φ = 170130240.

The previous prime is 513993967. The next prime is 513994001. The reversal of 513993970 is 79399315.

It is a self number, because there is not a number n which added to its sum of digits gives 513993970.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54505 + ... + 63235.

It is an arithmetic number, because the mean of its divisors is an integer number (22816716).

Almost surely, 2^513993970 is an apocalyptic number.

513993970 is an abundant number, since it is smaller than the sum of its proper divisors (581208398).

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

513993970 is a wasteful number, since it uses less digits than its factorization.

513993970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8803 (or 8774 counting only the distinct ones).

The product of its (nonzero) digits is 229635, while the sum is 46.

The square root of 513993970 is about 22671.4351111702. The cubic root of 513993970 is about 801.0371807806.

The spelling of 513993970 in words is "five hundred thirteen million, nine hundred ninety-three thousand, nine hundred seventy".