613286864 has 40 divisors (see below), whose sum is σ = 1255470240. Its totient is φ = 289415808.

The previous prime is 613286837. The next prime is 613286893. The reversal of 613286864 is 468682316.

It is a super-2 number, since 2×613286864² = 752241555109908992, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80567 + ... + 87849.

It is an arithmetic number, because the mean of its divisors is an integer number (31386756).

Almost surely, 2^613286864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 613286864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (627735120).

613286864 is an abundant number, since it is smaller than the sum of its proper divisors (642183376).

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

613286864 is a wasteful number, since it uses less digits than its factorization.

613286864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7587 (or 7581 counting only the distinct ones).

The product of its digits is 331776, while the sum is 44.

The square root of 613286864 is about 24764.6292926020. The cubic root of 613286864 is about 849.6131406803.

The spelling of 613286864 in words is "six hundred thirteen million, two hundred eighty-six thousand, eight hundred sixty-four".