72873472 has 40 divisors (see below), whose sum is σ = 166413456. Its totient is φ = 31229952.

The previous prime is 72873457. The next prime is 72873487. The reversal of 72873472 is 27437827.

It is an interprime number because it is at equal distance from previous prime (72873457) and next prime (72873487).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6583 + ... + 13750.

Almost surely, 2^72873472 is an apocalyptic number.

It is an amenable number.

72873472 is an abundant number, since it is smaller than the sum of its proper divisors (93539984).

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

72873472 is an equidigital number, since it uses as much as digits as its factorization.

72873472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20358 (or 20342 counting only the distinct ones).

The product of its digits is 131712, while the sum is 40.

The square root of 72873472 is about 8536.5960429202. The cubic root of 72873472 is about 417.6923172444.

The spelling of 72873472 in words is "seventy-two million, eight hundred seventy-three thousand, four hundred seventy-two".