72372487 has 16 divisors (see below), whose sum is σ = 82051200. Its totient is φ = 63231840.

The previous prime is 72372457. The next prime is 72372497. The reversal of 72372487 is 78427327.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72372487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72372457) 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, 97564 + ... + 98302.

It is an arithmetic number, because the mean of its divisors is an integer number (5128200).

Almost surely, 2^72372487 is an apocalyptic number.

72372487 is a deficient number, since it is larger than the sum of its proper divisors (9678713).

72372487 is a wasteful number, since it uses less digits than its factorization.

72372487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086.

The product of its digits is 131712, while the sum is 40.

The square root of 72372487 is about 8507.2020664846. The cubic root of 72372487 is about 416.7329422753.

The spelling of 72372487 in words is "seventy-two million, three hundred seventy-two thousand, four hundred eighty-seven".