72387579 has 16 divisors (see below), whose sum is σ = 105684480. Its totient is φ = 43707360.

The previous prime is 72387571. The next prime is 72387583. The reversal of 72387579 is 97578327.

It is not a de Polignac number, because 72387579 - 2³ = 72387571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72387571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5182 + ... + 13100.

It is an arithmetic number, because the mean of its divisors is an integer number (6605280).

Almost surely, 2^72387579 is an apocalyptic number.

72387579 is a deficient number, since it is larger than the sum of its proper divisors (33296901).

72387579 is a wasteful number, since it uses less digits than its factorization.

72387579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8210.

The product of its digits is 740880, while the sum is 48.

The square root of 72387579 is about 8508.0890333846. The cubic root of 72387579 is about 416.7619076861.

The spelling of 72387579 in words is "seventy-two million, three hundred eighty-seven thousand, five hundred seventy-nine".