68193964 has 24 divisors (see below), whose sum is σ = 129956400. Its totient is φ = 31187520.

The previous prime is 68193941. The next prime is 68193973. The reversal of 68193964 is 46939186.

It is a zygodrome in base 13.

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, 13267 + ... + 17674.

It is an arithmetic number, because the mean of its divisors is an integer number (5414850).

Almost surely, 2^68193964 is an apocalyptic number.

It is an amenable number.

68193964 is a deficient number, since it is larger than the sum of its proper divisors (61762436).

68193964 is a wasteful number, since it uses less digits than its factorization.

68193964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30993 (or 30991 counting only the distinct ones).

The product of its digits is 279936, while the sum is 46.

The square root of 68193964 is about 8257.9636715113. The cubic root of 68193964 is about 408.5532271500.

The spelling of 68193964 in words is "sixty-eight million, one hundred ninety-three thousand, nine hundred sixty-four".