68494723 has 16 divisors (see below), whose sum is σ = 79198560. Its totient is φ = 58643200.

The previous prime is 68494711. The next prime is 68494739. The reversal of 68494723 is 32749486.

It is not a de Polignac number, because 68494723 - 2⁹ = 68494211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68494723.

It is not an unprimeable number, because it can be changed into a prime (68494763) 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, 10461 + ... + 15697.

It is an arithmetic number, because the mean of its divisors is an integer number (4949910).

Almost surely, 2^68494723 is an apocalyptic number.

68494723 is a deficient number, since it is larger than the sum of its proper divisors (10703837).

68494723 is a wasteful number, since it uses less digits than its factorization.

68494723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5318.

The product of its digits is 290304, while the sum is 43.

The square root of 68494723 is about 8276.1538772548. The cubic root of 68494723 is about 409.1529667367.

The spelling of 68494723 in words is "sixty-eight million, four hundred ninety-four thousand, seven hundred twenty-three".