99572401 has 4 divisors (see below), whose sum is σ = 99763312. Its totient is φ = 99381492.

The previous prime is 99572387. The next prime is 99572423. The reversal of 99572401 is 10427599.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 99572401 - 2¹¹ = 99570353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99572441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94671 + ... + 95716.

It is an arithmetic number, because the mean of its divisors is an integer number (24940828).

Almost surely, 2^99572401 is an apocalyptic number.

It is an amenable number.

99572401 is a deficient number, since it is larger than the sum of its proper divisors (190911).

99572401 is a wasteful number, since it uses less digits than its factorization.

99572401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190910.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 99572401 is about 9978.5971458918. The cubic root of 99572401 is about 463.4963585644.

The spelling of 99572401 in words is "ninety-nine million, five hundred seventy-two thousand, four hundred one".