72713013 has 8 divisors (see below), whose sum is σ = 97019328. Its totient is φ = 48441024.

The previous prime is 72712999. The next prime is 72713021. The reversal of 72713013 is 31031727.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72713013 - 2⁹ = 72712501 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72713093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3145 + ... + 12462.

It is an arithmetic number, because the mean of its divisors is an integer number (12127416).

Almost surely, 2^72713013 is an apocalyptic number.

It is an amenable number.

72713013 is a deficient number, since it is larger than the sum of its proper divisors (24306315).

72713013 is a wasteful number, since it uses less digits than its factorization.

72713013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17163.

The product of its (nonzero) digits is 882, while the sum is 24.

The square root of 72713013 is about 8527.1925626199. The cubic root of 72713013 is about 417.3855218180.

The spelling of 72713013 in words is "seventy-two million, seven hundred thirteen thousand, thirteen".