68942723 has 2 divisors, whose sum is σ = 68942724. Its totient is φ = 68942722.

The previous prime is 68942677. The next prime is 68942737. The reversal of 68942723 is 32724986.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68942723 is a prime.

It is not a weakly prime, because it can be changed into another prime (68992723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34471361 + 34471362.

It is an arithmetic number, because the mean of its divisors is an integer number (34471362).

Almost surely, 2^68942723 is an apocalyptic number.

68942723 is a deficient number, since it is larger than the sum of its proper divisors (1).

68942723 is an equidigital number, since it uses as much as digits as its factorization.

68942723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 41.

The square root of 68942723 is about 8303.1754768883. The cubic root of 68942723 is about 410.0430710254.

The spelling of 68942723 in words is "sixty-eight million, nine hundred forty-two thousand, seven hundred twenty-three".