22864651 has 4 divisors (see below), whose sum is σ = 22899904. Its totient is φ = 22829400.

The previous prime is 22864637. The next prime is 22864663. The reversal of 22864651 is 15646822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15646822 = 2 ⋅7823411.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22864651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22864601) 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 3 ways as a sum of consecutive naturals, for example, 16635 + ... + 17956.

It is an arithmetic number, because the mean of its divisors is an integer number (5724976).

Almost surely, 2^22864651 is an apocalyptic number.

22864651 is a deficient number, since it is larger than the sum of its proper divisors (35253).

22864651 is an equidigital number, since it uses as much as digits as its factorization.

22864651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35252.

The product of its digits is 23040, while the sum is 34.

The square root of 22864651 is about 4781.6995932409. The cubic root of 22864651 is about 283.8277529553.

The spelling of 22864651 in words is "twenty-two million, eight hundred sixty-four thousand, six hundred fifty-one".