68628672 has 84 divisors (see below), whose sum is σ = 224826576. Its totient is φ = 19607040.

The previous prime is 68628661. The next prime is 68628697. The reversal of 68628672 is 27682686.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (84).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4479 + ... + 12542.

Almost surely, 2^68628672 is an apocalyptic number.

It is an amenable number.

68628672 is an abundant number, since it is smaller than the sum of its proper divisors (156197904).

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

68628672 is a wasteful number, since it uses less digits than its factorization.

68628672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17046 (or 17033 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 68628672 is about 8284.2423914321. The cubic root of 68628672 is about 409.4195076757.

The spelling of 68628672 in words is "sixty-eight million, six hundred twenty-eight thousand, six hundred seventy-two".