22748947 has 16 divisors (see below), whose sum is σ = 26629120. Its totient is φ = 19245600.

The previous prime is 22748939. The next prime is 22748951. The reversal of 22748947 is 74984722.

It is a cyclic number.

It is not a de Polignac number, because 22748947 - 2³ = 22748939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22748927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6172 + ... + 9142.

It is an arithmetic number, because the mean of its divisors is an integer number (1664320).

Almost surely, 2^22748947 is an apocalyptic number.

22748947 is a deficient number, since it is larger than the sum of its proper divisors (3880173).

22748947 is a wasteful number, since it uses less digits than its factorization.

22748947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3034.

The product of its digits is 225792, while the sum is 43.

The square root of 22748947 is about 4769.5856214141. The cubic root of 22748947 is about 283.3481836123.

The spelling of 22748947 in words is "twenty-two million, seven hundred forty-eight thousand, nine hundred forty-seven".