72052099 has 6 divisors (see below), whose sum is σ = 83815764. Its totient is φ = 61758900.

The previous prime is 72052093. The next prime is 72052109. The reversal of 72052099 is 99025027.

It is not a de Polignac number, because 72052099 - 2⁹ = 72051587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72052093) 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 in 5 ways as a sum of consecutive naturals, for example, 735177 + ... + 735274.

It is an arithmetic number, because the mean of its divisors is an integer number (13969294).

Almost surely, 2^72052099 is an apocalyptic number.

72052099 is a deficient number, since it is larger than the sum of its proper divisors (11763665).

72052099 is a wasteful number, since it uses less digits than its factorization.

72052099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470465 (or 1470458 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 72052099 is about 8488.3507821013. The cubic root of 72052099 is about 416.1170832759.

The spelling of 72052099 in words is "seventy-two million, fifty-two thousand, ninety-nine".