72412707 has 14 divisors (see below), whose sum is σ = 102584668. Its totient is φ = 45435424.

The previous prime is 72412699. The next prime is 72412709. The reversal of 72412707 is 70721427.

It is an ABA number since it can be written as A⋅B^A, here for A=3, B=289.

It is not a de Polignac number, because 72412707 - 2³ = 72412699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72412709) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 4259563 + ... + 4259579.

Almost surely, 2^72412707 is an apocalyptic number.

72412707 is a deficient number, since it is larger than the sum of its proper divisors (30171961).

72412707 is an frugal number, since it uses more digits than its factorization.

72412707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105 (or 20 counting only the distinct ones).

The product of its (nonzero) digits is 5488, while the sum is 30.

The square root of 72412707 is about 8509.5656175859. The cubic root of 72412707 is about 416.8101258188.

It can be divided in two parts, 724 and 12707, that added together give a palindrome (13431).

The spelling of 72412707 in words is "seventy-two million, four hundred twelve thousand, seven hundred seven".