72387877 has 16 divisors (see below), whose sum is σ = 78807168. Its totient is φ = 66306240.

The previous prime is 72387851. The next prime is 72387893. The reversal of 72387877 is 77878327.

It is not a de Polignac number, because 72387877 - 2¹¹ = 72385829 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72387877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72387817) 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, 51727 + ... + 53107.

It is an arithmetic number, because the mean of its divisors is an integer number (4925448).

Almost surely, 2^72387877 is an apocalyptic number.

It is an amenable number.

72387877 is a deficient number, since it is larger than the sum of its proper divisors (6419291).

72387877 is a wasteful number, since it uses less digits than its factorization.

72387877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500.

The product of its digits is 921984, while the sum is 49.

The square root of 72387877 is about 8508.1065461124. The cubic root of 72387877 is about 416.7624795838.

The spelling of 72387877 in words is "seventy-two million, three hundred eighty-seven thousand, eight hundred seventy-seven".