72385887 has 12 divisors (see below), whose sum is σ = 112272216. Its totient is φ = 41363280.

The previous prime is 72385867. The next prime is 72385889. The reversal of 72385887 is 78858327.

It is not a de Polignac number, because 72385887 - 2¹⁴ = 72369503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72385889) 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, 246064 + ... + 246357.

It is an arithmetic number, because the mean of its divisors is an integer number (9356018).

Almost surely, 2^72385887 is an apocalyptic number.

72385887 is a deficient number, since it is larger than the sum of its proper divisors (39886329).

72385887 is a wasteful number, since it uses less digits than its factorization.

72385887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492438 (or 492431 counting only the distinct ones).

The product of its digits is 752640, while the sum is 48.

The square root of 72385887 is about 8507.9895980190. The cubic root of 72385887 is about 416.7586605054.

The spelling of 72385887 in words is "seventy-two million, three hundred eighty-five thousand, eight hundred eighty-seven".