72473500 has 48 divisors (see below), whose sum is σ = 172684512. Its totient is φ = 26352000.

The previous prime is 72473477. The next prime is 72473503. The reversal of 72473500 is 537427.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72473503) 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, 1089 + ... + 12088.

It is an arithmetic number, because the mean of its divisors is an integer number (3597594).

Almost surely, 2^72473500 is an apocalyptic number.

It is an amenable number.

72473500 is an abundant number, since it is smaller than the sum of its proper divisors (100211012).

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

72473500 is a wasteful number, since it uses less digits than its factorization.

72473500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13207 (or 13195 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 72473500 is about 8513.1369071571. The cubic root of 72473500 is about 416.9267354182.

The spelling of 72473500 in words is "seventy-two million, four hundred seventy-three thousand, five hundred".