68723307 has 12 divisors (see below), whose sum is σ = 100749480. Its totient is φ = 45131328.

The previous prime is 68723297. The next prime is 68723309. The reversal of 68723307 is 70332786.

It is not a de Polignac number, because 68723307 - 2²⁴ = 51946091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68723309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56382 + ... + 57587.

It is an arithmetic number, because the mean of its divisors is an integer number (8395790).

Almost surely, 2^68723307 is an apocalyptic number.

68723307 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

68723307 is a deficient number, since it is larger than the sum of its proper divisors (32026173).

68723307 is a wasteful number, since it uses less digits than its factorization.

68723307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114042 (or 114039 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 68723307 is about 8289.9521711527. The cubic root of 68723307 is about 409.6076099095.

The spelling of 68723307 in words is "sixty-eight million, seven hundred twenty-three thousand, three hundred seven".