72371859 has 16 divisors (see below), whose sum is σ = 111929088. Its totient is φ = 40737312.

The previous prime is 72371857. The next prime is 72371899. The reversal of 72371859 is 95817327.

It is not a de Polignac number, because 72371859 - 2¹ = 72371857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72371859.

It is not an unprimeable number, because it can be changed into a prime (72371851) 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 15 ways as a sum of consecutive naturals, for example, 24312 + ... + 27125.

It is an arithmetic number, because the mean of its divisors is an integer number (6995568).

Almost surely, 2^72371859 is an apocalyptic number.

72371859 is a deficient number, since it is larger than the sum of its proper divisors (39557229).

72371859 is a wasteful number, since it uses less digits than its factorization.

72371859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51514.

The product of its digits is 105840, while the sum is 42.

The square root of 72371859 is about 8507.1651565019. The cubic root of 72371859 is about 416.7317368953.

The spelling of 72371859 in words is "seventy-two million, three hundred seventy-one thousand, eight hundred fifty-nine".