72427868 has 12 divisors (see below), whose sum is σ = 127557192. Its totient is φ = 35982960.

The previous prime is 72427793. The next prime is 72427879. The reversal of 72427868 is 86872427.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 57038 + ... + 58293.

It is an arithmetic number, because the mean of its divisors is an integer number (10629766).

Almost surely, 2^72427868 is an apocalyptic number.

It is an amenable number.

72427868 is a deficient number, since it is larger than the sum of its proper divisors (55129324).

72427868 is a wasteful number, since it uses less digits than its factorization.

72427868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115492 (or 115490 counting only the distinct ones).

The product of its digits is 301056, while the sum is 44.

The square root of 72427868 is about 8510.4563919921. The cubic root of 72427868 is about 416.8392128746.

The spelling of 72427868 in words is "seventy-two million, four hundred twenty-seven thousand, eight hundred sixty-eight".