613898864 has 10 divisors (see below), whose sum is σ = 1189429080. Its totient is φ = 306949424.

The previous prime is 613898843. The next prime is 613898869. The reversal of 613898864 is 468898316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613898869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19184324 + ... + 19184355.

It is an arithmetic number, because the mean of its divisors is an integer number (118942908).

Almost surely, 2^613898864 is an apocalyptic number.

It is an amenable number.

613898864 is a deficient number, since it is larger than the sum of its proper divisors (575530216).

613898864 is a wasteful number, since it uses less digits than its factorization.

613898864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38368687 (or 38368681 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 53.

The square root of 613898864 is about 24776.9825442890. The cubic root of 613898864 is about 849.8956568572.

The spelling of 613898864 in words is "six hundred thirteen million, eight hundred ninety-eight thousand, eight hundred sixty-four".