72471199 has 2 divisors, whose sum is σ = 72471200. Its totient is φ = 72471198.

The previous prime is 72471181. The next prime is 72471241. The reversal of 72471199 is 99117427.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72471199 - 2⁵ = 72471167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72472199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36235599 + 36235600.

It is an arithmetic number, because the mean of its divisors is an integer number (36235600).

Almost surely, 2^72471199 is an apocalyptic number.

72471199 is a deficient number, since it is larger than the sum of its proper divisors (1).

72471199 is an equidigital number, since it uses as much as digits as its factorization.

72471199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752, while the sum is 40.

The square root of 72471199 is about 8513.0017620109. The cubic root of 72471199 is about 416.9223229614.

The spelling of 72471199 in words is "seventy-two million, four hundred seventy-one thousand, one hundred ninety-nine".