22397565 has 8 divisors (see below), whose sum is σ = 35836128. Its totient is φ = 11945360.

The previous prime is 22397563. The next prime is 22397567. The reversal of 22397565 is 56579322.

It is an interprime number because it is at equal distance from previous prime (22397563) and next prime (22397567).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22397565 - 2¹ = 22397563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22397563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 746571 + ... + 746600.

It is an arithmetic number, because the mean of its divisors is an integer number (4479516).

Almost surely, 2^22397565 is an apocalyptic number.

It is an amenable number.

22397565 is a deficient number, since it is larger than the sum of its proper divisors (13438563).

22397565 is a wasteful number, since it uses less digits than its factorization.

22397565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493179.

The product of its digits is 113400, while the sum is 39.

The square root of 22397565 is about 4732.6065756621. The cubic root of 22397565 is about 281.8817345241.

The spelling of 22397565 in words is "twenty-two million, three hundred ninety-seven thousand, five hundred sixty-five".