68634844 has 12 divisors (see below), whose sum is σ = 121174704. Its totient is φ = 34013504.

The previous prime is 68634833. The next prime is 68634857. The reversal of 68634844 is 44843686.

It is a self number, because there is not a number n which added to its sum of digits gives 68634844.

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, 75472 + ... + 76375.

It is an arithmetic number, because the mean of its divisors is an integer number (10097892).

Almost surely, 2^68634844 is an apocalyptic number.

It is an amenable number.

68634844 is a deficient number, since it is larger than the sum of its proper divisors (52539860).

68634844 is a wasteful number, since it uses less digits than its factorization.

68634844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151964 (or 151962 counting only the distinct ones).

The product of its digits is 442368, while the sum is 43.

The square root of 68634844 is about 8284.6148975073. The cubic root of 68634844 is about 409.4317807844.

The spelling of 68634844 in words is "sixty-eight million, six hundred thirty-four thousand, eight hundred forty-four".