68812923 has 24 divisors (see below), whose sum is σ = 98338240. Its totient is φ = 42791040.

The previous prime is 68812903. The next prime is 68812937. The reversal of 68812923 is 32921886.

It is a happy number.

It is not a de Polignac number, because 68812923 - 2¹³ = 68804731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68812903) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 120228 + ... + 120798.

Almost surely, 2^68812923 is an apocalyptic number.

68812923 is a deficient number, since it is larger than the sum of its proper divisors (29525317).

68812923 is a wasteful number, since it uses less digits than its factorization.

68812923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747 (or 730 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 68812923 is about 8295.3555077525. The cubic root of 68812923 is about 409.7855769539.

The spelling of 68812923 in words is "sixty-eight million, eight hundred twelve thousand, nine hundred twenty-three".