72924385 has 8 divisors (see below), whose sum is σ = 87699456. Its totient is φ = 58212720.

The previous prime is 72924367. The next prime is 72924389. The reversal of 72924385 is 58342927.

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

It is not a de Polignac number, because 72924385 - 2¹⁵ = 72891617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72924389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13281 + ... + 17950.

It is an arithmetic number, because the mean of its divisors is an integer number (10962432).

Almost surely, 2^72924385 is an apocalyptic number.

It is an amenable number.

72924385 is a deficient number, since it is larger than the sum of its proper divisors (14775071).

72924385 is a wasteful number, since it uses less digits than its factorization.

72924385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31703.

The product of its digits is 120960, while the sum is 40.

The square root of 72924385 is about 8539.5775656645. The cubic root of 72924385 is about 417.7895680811.

The spelling of 72924385 in words is "seventy-two million, nine hundred twenty-four thousand, three hundred eighty-five".