68720696 has 16 divisors (see below), whose sum is σ = 140565240. Its totient is φ = 31236640.

The previous prime is 68720689. The next prime is 68720719. The reversal of 68720696 is 69602786.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 390371 + ... + 390546.

Almost surely, 2^68720696 is an apocalyptic number.

It is an amenable number.

68720696 is an abundant number, since it is smaller than the sum of its proper divisors (71844544).

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

68720696 is a wasteful number, since it uses less digits than its factorization.

68720696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780934 (or 780930 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 68720696 is about 8289.7946898581. The cubic root of 68720696 is about 409.6024224456.

The spelling of 68720696 in words is "sixty-eight million, seven hundred twenty thousand, six hundred ninety-six".