68438684 has 24 divisors (see below), whose sum is σ = 126658560. Its totient is φ = 32267376.

The previous prime is 68438663. The next prime is 68438701. The reversal of 68438684 is 48683486.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15269 + ... + 19235.

It is an arithmetic number, because the mean of its divisors is an integer number (5277440).

Almost surely, 2^68438684 is an apocalyptic number.

It is an amenable number.

68438684 is a deficient number, since it is larger than the sum of its proper divisors (58219876).

68438684 is a wasteful number, since it uses less digits than its factorization.

68438684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4217 (or 4215 counting only the distinct ones).

The product of its digits is 884736, while the sum is 47.

The square root of 68438684 is about 8272.7676142873. The cubic root of 68438684 is about 409.0413533747.

The spelling of 68438684 in words is "sixty-eight million, four hundred thirty-eight thousand, six hundred eighty-four".