72331875 has 120 divisors (see below), whose sum is σ = 163747584. Its totient is φ = 29880000.

The previous prime is 72331873. The next prime is 72331877. The reversal of 72331875 is 57813327.

It is an interprime number because it is at equal distance from previous prime (72331873) and next prime (72331877).

It is not a de Polignac number, because 72331875 - 2¹ = 72331873 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72331871) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 433042 + ... + 433208.

Almost surely, 2^72331875 is an apocalyptic number.

72331875 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

72331875 is an abundant number, since it is smaller than the sum of its proper divisors (91415709).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72331875 is a wasteful number, since it uses less digits than its factorization.

72331875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211 (or 193 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 72331875 is about 8504.8148127987. The cubic root of 72331875 is about 416.6549774499.

The spelling of 72331875 in words is "seventy-two million, three hundred thirty-one thousand, eight hundred seventy-five".