72324647 has 8 divisors (see below), whose sum is σ = 77658912. Its totient is φ = 67110400.

The previous prime is 72324631. The next prime is 72324653. The reversal of 72324647 is 74642327.

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 72324647 - 2⁴ = 72324631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72324607) 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, 28754 + ... + 31167.

It is an arithmetic number, because the mean of its divisors is an integer number (9707364).

Almost surely, 2^72324647 is an apocalyptic number.

72324647 is a deficient number, since it is larger than the sum of its proper divisors (5334265).

72324647 is a wasteful number, since it uses less digits than its factorization.

72324647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60009.

The product of its digits is 56448, while the sum is 35.

The square root of 72324647 is about 8504.3898664160. The cubic root of 72324647 is about 416.6410984488.

The spelling of 72324647 in words is "seventy-two million, three hundred twenty-four thousand, six hundred forty-seven".