72324651 has 8 divisors (see below), whose sum is σ = 110209024. Its totient is φ = 41328360.

The previous prime is 72324631. The next prime is 72324653. The reversal of 72324651 is 15642327.

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

It is a de Polignac number, because none of the positive numbers 2^k-72324651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72324653) 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, 1721995 + ... + 1722036.

It is an arithmetic number, because the mean of its divisors is an integer number (13776128).

Almost surely, 2^72324651 is an apocalyptic number.

72324651 is a deficient number, since it is larger than the sum of its proper divisors (37884373).

72324651 is a wasteful number, since it uses less digits than its factorization.

72324651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3444041.

The product of its digits is 10080, while the sum is 30.

The square root of 72324651 is about 8504.3901015887. The cubic root of 72324651 is about 416.6411061298.

Adding to 72324651 its reverse (15642327), we get a palindrome (87966978).

The spelling of 72324651 in words is "seventy-two million, three hundred twenty-four thousand, six hundred fifty-one".