613663684 has 6 divisors (see below), whose sum is σ = 1073911454. Its totient is φ = 306831840.

The previous prime is 613663679. The next prime is 613663717. The reversal of 613663684 is 486366316.

It can be written as a sum of positive squares in only one way, i.e., 601622784 + 12040900 = 24528^2 + 3470^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 613663684.

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 as a sum of consecutive naturals, namely, 76707957 + ... + 76707964.

Almost surely, 2^613663684 is an apocalyptic number.

It is an amenable number.

613663684 is a deficient number, since it is larger than the sum of its proper divisors (460247770).

613663684 is a wasteful number, since it uses less digits than its factorization.

613663684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153415925 (or 153415923 counting only the distinct ones).

The product of its digits is 373248, while the sum is 43.

The square root of 613663684 is about 24772.2361525963. The cubic root of 613663684 is about 849.7871134680.

The spelling of 613663684 in words is "six hundred thirteen million, six hundred sixty-three thousand, six hundred eighty-four".