68722623 has 12 divisors (see below), whose sum is σ = 99816808. Its totient is φ = 45560880.

The previous prime is 68722607. The next prime is 68722631. The reversal of 68722623 is 32622786.

68722623 is a `hidden beast` number, since 6 + 8 + 7 + 22 + 623 = 666.

It is not a de Polignac number, because 68722623 - 2⁴ = 68722607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68722673) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19465 + ... + 22722.

Almost surely, 2^68722623 is an apocalyptic number.

68722623 is a deficient number, since it is larger than the sum of its proper divisors (31094185).

68722623 is a wasteful number, since it uses less digits than its factorization.

68722623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42374 (or 42371 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 68722623 is about 8289.9109162885. The cubic root of 68722623 is about 409.6062509695.

The spelling of 68722623 in words is "sixty-eight million, seven hundred twenty-two thousand, six hundred twenty-three".