22747995 has 12 divisors (see below), whose sum is σ = 39429936. Its totient is φ = 12132240.

The previous prime is 22747993. The next prime is 22748009. The reversal of 22747995 is 59974722.

It is not a de Polignac number, because 22747995 - 2¹ = 22747993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 505511 = 22747995 / (2 + 2 + 7 + 4 + 7 + 9 + 9 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 22747995.

It is not an unprimeable number, because it can be changed into a prime (22747993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 252711 + ... + 252800.

It is an arithmetic number, because the mean of its divisors is an integer number (3285828).

Almost surely, 2^22747995 is an apocalyptic number.

22747995 is a deficient number, since it is larger than the sum of its proper divisors (16681941).

22747995 is a wasteful number, since it uses less digits than its factorization.

22747995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505522 (or 505519 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 22747995 is about 4769.4858213438. The cubic root of 22747995 is about 283.3442310303.

The spelling of 22747995 in words is "twenty-two million, seven hundred forty-seven thousand, nine hundred ninety-five".