22649699 has 4 divisors (see below), whose sum is σ = 22904280. Its totient is φ = 22395120.

The previous prime is 22649689. The next prime is 22649701. The reversal of 22649699 is 99694622.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22649699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22649689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127157 + ... + 127334.

It is an arithmetic number, because the mean of its divisors is an integer number (5726070).

Almost surely, 2^22649699 is an apocalyptic number.

22649699 is a deficient number, since it is larger than the sum of its proper divisors (254581).

22649699 is an equidigital number, since it uses as much as digits as its factorization.

22649699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254580.

The product of its digits is 419904, while the sum is 47.

The square root of 22649699 is about 4759.1699906601. The cubic root of 22649699 is about 282.9355236916.

The spelling of 22649699 in words is "twenty-two million, six hundred forty-nine thousand, six hundred ninety-nine".