72715574 has 4 divisors (see below), whose sum is σ = 109073364. Its totient is φ = 36357786.

The previous prime is 72715571. The next prime is 72715589. The reversal of 72715574 is 47551727.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72715571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18178892 + ... + 18178895.

It is an arithmetic number, because the mean of its divisors is an integer number (27268341).

Almost surely, 2^72715574 is an apocalyptic number.

72715574 is a deficient number, since it is larger than the sum of its proper divisors (36357790).

72715574 is a wasteful number, since it uses less digits than its factorization.

72715574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36357789.

The product of its digits is 68600, while the sum is 38.

The square root of 72715574 is about 8527.3427279546. The cubic root of 72715574 is about 417.3904219577.

The spelling of 72715574 in words is "seventy-two million, seven hundred fifteen thousand, five hundred seventy-four".