22773897 has 24 divisors (see below), whose sum is σ = 35582976. Its totient is φ = 13981056.

The previous prime is 22773853. The next prime is 22773911. The reversal of 22773897 is 79837722.

It is not a de Polignac number, because 22773897 - 2¹⁴ = 22757513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22773827) 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, 5608 + ... + 8774.

It is an arithmetic number, because the mean of its divisors is an integer number (1482624).

Almost surely, 2^22773897 is an apocalyptic number.

It is an amenable number.

22773897 is a deficient number, since it is larger than the sum of its proper divisors (12809079).

22773897 is a wasteful number, since it uses less digits than its factorization.

22773897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3237 (or 3234 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 22773897 is about 4772.2004358577. The cubic root of 22773897 is about 283.4517335222.

The spelling of 22773897 in words is "twenty-two million, seven hundred seventy-three thousand, eight hundred ninety-seven".