72407887 has 8 divisors (see below), whose sum is σ = 75731040. Its totient is φ = 69099360.

The previous prime is 72407873. The next prime is 72407893. The reversal of 72407887 is 78870427.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72407887 - 2⁷ = 72407759 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 (72407837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7189 + ... + 14017.

It is an arithmetic number, because the mean of its divisors is an integer number (9466380).

Almost surely, 2^72407887 is an apocalyptic number.

72407887 is a deficient number, since it is larger than the sum of its proper divisors (3323153).

72407887 is a wasteful number, since it uses less digits than its factorization.

72407887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7313.

The product of its (nonzero) digits is 175616, while the sum is 43.

The square root of 72407887 is about 8509.2824021770. The cubic root of 72407887 is about 416.8008775830.

The spelling of 72407887 in words is "seventy-two million, four hundred seven thousand, eight hundred eighty-seven".