72652317 has 4 divisors (see below), whose sum is σ = 96869760. Its totient is φ = 48434876.

The previous prime is 72652303. The next prime is 72652319. The reversal of 72652317 is 71325627.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72652317 - 2⁶ = 72652253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72652319) 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, 12108717 + ... + 12108722.

It is an arithmetic number, because the mean of its divisors is an integer number (24217440).

Almost surely, 2^72652317 is an apocalyptic number.

It is an amenable number.

72652317 is a deficient number, since it is larger than the sum of its proper divisors (24217443).

72652317 is a wasteful number, since it uses less digits than its factorization.

72652317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24217442.

The product of its digits is 17640, while the sum is 33.

The square root of 72652317 is about 8523.6328522526. The cubic root of 72652317 is about 417.2693542399.

The spelling of 72652317 in words is "seventy-two million, six hundred fifty-two thousand, three hundred seventeen".