22457977 has 8 divisors (see below), whose sum is σ = 23379840. Its totient is φ = 21546000.

The previous prime is 22457951. The next prime is 22457987. The reversal of 22457977 is 77975422.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22457977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22457917) 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, 2352 + ... + 7102.

It is an arithmetic number, because the mean of its divisors is an integer number (2922480).

Almost surely, 2^22457977 is an apocalyptic number.

It is an amenable number.

22457977 is a deficient number, since it is larger than the sum of its proper divisors (921863).

22457977 is a wasteful number, since it uses less digits than its factorization.

22457977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4943.

The product of its digits is 246960, while the sum is 43.

The square root of 22457977 is about 4738.9848068969. The cubic root of 22457977 is about 282.1349428778.

The spelling of 22457977 in words is "twenty-two million, four hundred fifty-seven thousand, nine hundred seventy-seven".