613938894 has 8 divisors (see below), whose sum is σ = 1227877800. Its totient is φ = 204646296.

The previous prime is 613938881. The next prime is 613938937. The reversal of 613938894 is 498839316.

It is a sphenic number, since it is the product of 3 distinct primes.

613938894 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51161569 + ... + 51161580.

It is an arithmetic number, because the mean of its divisors is an integer number (153484725).

Almost surely, 2^613938894 is an apocalyptic number.

613938894 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

613938894 is a wasteful number, since it uses less digits than its factorization.

613938894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102323154.

The product of its digits is 1119744, while the sum is 51.

The square root of 613938894 is about 24777.7903373162. The cubic root of 613938894 is about 849.9141292722.

The spelling of 613938894 in words is "six hundred thirteen million, nine hundred thirty-eight thousand, eight hundred ninety-four".