68403723 has 4 divisors (see below), whose sum is σ = 91204968. Its totient is φ = 45602480.

The previous prime is 68403691. The next prime is 68403737. The reversal of 68403723 is 32730486.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68403723 - 2⁵ = 68403691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68403773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11400618 + ... + 11400623.

It is an arithmetic number, because the mean of its divisors is an integer number (22801242).

Almost surely, 2^68403723 is an apocalyptic number.

68403723 is a deficient number, since it is larger than the sum of its proper divisors (22801245).

68403723 is a wasteful number, since it uses less digits than its factorization.

68403723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22801244.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 68403723 is about 8270.6543271981. The cubic root of 68403723 is about 408.9716903826.

The spelling of 68403723 in words is "sixty-eight million, four hundred three thousand, seven hundred twenty-three".