68892621 has 16 divisors (see below), whose sum is σ = 105183744. Its totient is φ = 39290544.

The previous prime is 68892617. The next prime is 68892623. The reversal of 68892621 is 12629886.

It is not a de Polignac number, because 68892621 - 2² = 68892617 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68892623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8910 + ... + 14736.

It is an arithmetic number, because the mean of its divisors is an integer number (6573984).

Almost surely, 2^68892621 is an apocalyptic number.

It is an amenable number.

68892621 is a deficient number, since it is larger than the sum of its proper divisors (36291123).

68892621 is a wasteful number, since it uses less digits than its factorization.

68892621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6400.

The product of its digits is 82944, while the sum is 42.

The square root of 68892621 is about 8300.1578900645. The cubic root of 68892621 is about 409.9437182312.

The spelling of 68892621 in words is "sixty-eight million, eight hundred ninety-two thousand, six hundred twenty-one".