68910723 has 16 divisors (see below), whose sum is σ = 116674560. Its totient is φ = 39377448.

The previous prime is 68910719. The next prime is 68910727. The reversal of 68910723 is 32701986.

It is an interprime number because it is at equal distance from previous prime (68910719) and next prime (68910727).

It is not a de Polignac number, because 68910723 - 2² = 68910719 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (68910727) 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, 182115 + ... + 182492.

It is an arithmetic number, because the mean of its divisors is an integer number (7292160).

Almost surely, 2^68910723 is an apocalyptic number.

68910723 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

68910723 is a deficient number, since it is larger than the sum of its proper divisors (47763837).

68910723 is a wasteful number, since it uses less digits than its factorization.

68910723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364623 (or 364617 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 68910723 is about 8301.2482796264. The cubic root of 68910723 is about 409.9796202442.

The spelling of 68910723 in words is "sixty-eight million, nine hundred ten thousand, seven hundred twenty-three".