68712393 has 8 divisors (see below), whose sum is σ = 92232000. Its totient is φ = 45500528.

The previous prime is 68712389. The next prime is 68712437. The reversal of 68712393 is 39321786.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68712393 - 2² = 68712389 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68712353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76413 + ... + 77306.

It is an arithmetic number, because the mean of its divisors is an integer number (11529000).

Almost surely, 2^68712393 is an apocalyptic number.

It is an amenable number.

68712393 is a deficient number, since it is larger than the sum of its proper divisors (23519607).

68712393 is a wasteful number, since it uses less digits than its factorization.

68712393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153871.

The product of its digits is 54432, while the sum is 39.

The square root of 68712393 is about 8289.2938782504. The cubic root of 68712393 is about 409.5859253974.

The spelling of 68712393 in words is "sixty-eight million, seven hundred twelve thousand, three hundred ninety-three".