68744723 has 4 divisors (see below), whose sum is σ = 71733648. Its totient is φ = 65755800.

The previous prime is 68744699. The next prime is 68744729. The reversal of 68744723 is 32744786.

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 68744723 - 2¹² = 68740627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68744729) 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, 1494428 + ... + 1494473.

It is an arithmetic number, because the mean of its divisors is an integer number (17933412).

Almost surely, 2^68744723 is an apocalyptic number.

68744723 is a deficient number, since it is larger than the sum of its proper divisors (2988925).

68744723 is a wasteful number, since it uses less digits than its factorization.

68744723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2988924.

The product of its digits is 225792, while the sum is 41.

The square root of 68744723 is about 8291.2437547089. The cubic root of 68744723 is about 409.6501536786.

The spelling of 68744723 in words is "sixty-eight million, seven hundred forty-four thousand, seven hundred twenty-three".