72499199 has 8 divisors (see below), whose sum is σ = 73256832. Its totient is φ = 71744920.

The previous prime is 72499187. The next prime is 72499201. The reversal of 72499199 is 99199427.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72499199 - 2⁴ = 72499183 is a prime.

It is a super-2 number, since 2×72499199² = 10512267711283202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72499129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73262 + ... + 74244.

It is an arithmetic number, because the mean of its divisors is an integer number (9157104).

Almost surely, 2^72499199 is an apocalyptic number.

72499199 is a deficient number, since it is larger than the sum of its proper divisors (757633).

72499199 is a wasteful number, since it uses less digits than its factorization.

72499199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1677.

The product of its digits is 367416, while the sum is 50.

The square root of 72499199 is about 8514.6461464937. The cubic root of 72499199 is about 416.9760101368.

The spelling of 72499199 in words is "seventy-two million, four hundred ninety-nine thousand, one hundred ninety-nine".