72373887 has 12 divisors (see below), whose sum is σ = 107365960. Its totient is φ = 46945008.

The previous prime is 72373883. The next prime is 72373909. The reversal of 72373887 is 78837327.

It is not a de Polignac number, because 72373887 - 2² = 72373883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72373883) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108337 + ... + 109002.

Almost surely, 2^72373887 is an apocalyptic number.

72373887 is a deficient number, since it is larger than the sum of its proper divisors (34992073).

72373887 is a wasteful number, since it uses less digits than its factorization.

72373887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217382 (or 217379 counting only the distinct ones).

The product of its digits is 395136, while the sum is 45.

The square root of 72373887 is about 8507.2843493091. The cubic root of 72373887 is about 416.7356294031.

The spelling of 72373887 in words is "seventy-two million, three hundred seventy-three thousand, eight hundred eighty-seven".