72427599 has 12 divisors (see below), whose sum is σ = 110771856. Its totient is φ = 45444672.

The previous prime is 72427591. The next prime is 72427631. The reversal of 72427599 is 99572427.

It is not a de Polignac number, because 72427599 - 2³ = 72427591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72427591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 236539 + ... + 236844.

It is an arithmetic number, because the mean of its divisors is an integer number (9230988).

Almost surely, 2^72427599 is an apocalyptic number.

72427599 is a deficient number, since it is larger than the sum of its proper divisors (38344257).

72427599 is a wasteful number, since it uses less digits than its factorization.

72427599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473406 (or 473403 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 72427599 is about 8510.4405878897. The cubic root of 72427599 is about 416.8386968215.

It can be divided in two parts, 7242 and 7599, that added together give a palindrome (14841).

The spelling of 72427599 in words is "seventy-two million, four hundred twenty-seven thousand, five hundred ninety-nine".