72325217 has 8 divisors (see below), whose sum is σ = 75038400. Its totient is φ = 69626704.

The previous prime is 72325213. The next prime is 72325241. The reversal of 72325217 is 71252327.

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

It is a cyclic number.

It is not a de Polignac number, because 72325217 - 2² = 72325213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72325217.

It is not an unprimeable number, because it can be changed into a prime (72325213) 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, 6938 + ... + 13884.

It is an arithmetic number, because the mean of its divisors is an integer number (9379800).

Almost surely, 2^72325217 is an apocalyptic number.

It is an amenable number.

72325217 is a deficient number, since it is larger than the sum of its proper divisors (2713183).

72325217 is a wasteful number, since it uses less digits than its factorization.

72325217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7335.

The product of its digits is 5880, while the sum is 29.

The square root of 72325217 is about 8504.4233784543. The cubic root of 72325217 is about 416.6421929803.

The spelling of 72325217 in words is "seventy-two million, three hundred twenty-five thousand, two hundred seventeen".