22772707 has 4 divisors (see below), whose sum is σ = 24112296. Its totient is φ = 21433120.

The previous prime is 22772699. The next prime is 22772731. The reversal of 22772707 is 70727722.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22772707 - 2³ = 22772699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22770707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 669769 + ... + 669802.

It is an arithmetic number, because the mean of its divisors is an integer number (6028074).

Almost surely, 2^22772707 is an apocalyptic number.

22772707 is a deficient number, since it is larger than the sum of its proper divisors (1339589).

22772707 is a wasteful number, since it uses less digits than its factorization.

22772707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339588.

The product of its (nonzero) digits is 19208, while the sum is 34.

The square root of 22772707 is about 4772.0757537994. The cubic root of 22772707 is about 283.4467963868.

The spelling of 22772707 in words is "twenty-two million, seven hundred seventy-two thousand, seven hundred seven".