22772997 has 24 divisors (see below), whose sum is σ = 36036000. Its totient is φ = 13772448.

The previous prime is 22772993. The next prime is 22773029. The reversal of 22772997 is 79927722.

It is not a de Polignac number, because 22772997 - 2² = 22772993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22772993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5254 + ... + 8552.

It is an arithmetic number, because the mean of its divisors is an integer number (1501500).

Almost surely, 2^22772997 is an apocalyptic number.

It is an amenable number.

22772997 is a deficient number, since it is larger than the sum of its proper divisors (13263003).

22772997 is a wasteful number, since it uses less digits than its factorization.

22772997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3377 (or 3374 counting only the distinct ones).

The product of its digits is 222264, while the sum is 45.

The square root of 22772997 is about 4772.1061388029. The cubic root of 22772997 is about 283.4479995701.

The spelling of 22772997 in words is "twenty-two million, seven hundred seventy-two thousand, nine hundred ninety-seven".