72941723 has 4 divisors (see below), whose sum is σ = 72959040. Its totient is φ = 72924408.

The previous prime is 72941711. The next prime is 72941731. The reversal of 72941723 is 32714927.

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 72941723 - 2¹⁶ = 72876187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72941423) 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, 2198 + ... + 12276.

It is an arithmetic number, because the mean of its divisors is an integer number (18239760).

Almost surely, 2^72941723 is an apocalyptic number.

72941723 is a deficient number, since it is larger than the sum of its proper divisors (17317).

72941723 is a wasteful number, since it uses less digits than its factorization.

72941723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17316.

The product of its digits is 21168, while the sum is 35.

The square root of 72941723 is about 8540.5926609340. The cubic root of 72941723 is about 417.8226757151.

The spelling of 72941723 in words is "seventy-two million, nine hundred forty-one thousand, seven hundred twenty-three".