22712899 has 4 divisors (see below), whose sum is σ = 24777720. Its totient is φ = 20648080.

The previous prime is 22712897. The next prime is 22712903. The reversal of 22712899 is 99821722.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22712899 - 2¹ = 22712897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22712897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1032394 + ... + 1032415.

It is an arithmetic number, because the mean of its divisors is an integer number (6194430).

Almost surely, 2^22712899 is an apocalyptic number.

22712899 is a deficient number, since it is larger than the sum of its proper divisors (2064821).

22712899 is a wasteful number, since it uses less digits than its factorization.

22712899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2064820.

The product of its digits is 36288, while the sum is 40.

The square root of 22712899 is about 4765.8051785611. The cubic root of 22712899 is about 283.1984399020.

The spelling of 22712899 in words is "twenty-two million, seven hundred twelve thousand, eight hundred ninety-nine".