613894864 has 40 divisors (see below), whose sum is σ = 1365850080. Its totient is φ = 264355200.

The previous prime is 613894849. The next prime is 613894877. The reversal of 613894864 is 468498316.

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 7 ways as a sum of consecutive naturals, for example, 88447 + ... + 95134.

It is an arithmetic number, because the mean of its divisors is an integer number (34146252).

Almost surely, 2^613894864 is an apocalyptic number.

It is an amenable number.

613894864 is an abundant number, since it is smaller than the sum of its proper divisors (751955216).

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

613894864 is a wasteful number, since it uses less digits than its factorization.

613894864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183619 (or 183613 counting only the distinct ones).

The product of its digits is 995328, while the sum is 49.

The square root of 613894864 is about 24776.9018240780. The cubic root of 613894864 is about 849.8938109560.

The spelling of 613894864 in words is "six hundred thirteen million, eight hundred ninety-four thousand, eight hundred sixty-four".