72448199 has 2 divisors, whose sum is σ = 72448200. Its totient is φ = 72448198.

The previous prime is 72448171. The next prime is 72448213. The reversal of 72448199 is 99184427.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72448199 - 2²⁰ = 71399623 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72448399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36224099 + 36224100.

It is an arithmetic number, because the mean of its divisors is an integer number (36224100).

Almost surely, 2^72448199 is an apocalyptic number.

72448199 is a deficient number, since it is larger than the sum of its proper divisors (1).

72448199 is an equidigital number, since it uses as much as digits as its factorization.

72448199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 44.

The square root of 72448199 is about 8511.6507799604. The cubic root of 72448199 is about 416.8782124357.

The spelling of 72448199 in words is "seventy-two million, four hundred forty-eight thousand, one hundred ninety-nine".