22783397 has 12 divisors (see below), whose sum is σ = 28196640. Its totient is φ = 18025488.

The previous prime is 22783393. The next prime is 22783447. The reversal of 22783397 is 79338722.

It is not a de Polignac number, because 22783397 - 2² = 22783393 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22783393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8447 + ... + 10812.

It is an arithmetic number, because the mean of its divisors is an integer number (2349720).

Almost surely, 2^22783397 is an apocalyptic number.

It is an amenable number.

22783397 is a deficient number, since it is larger than the sum of its proper divisors (5413243).

22783397 is a wasteful number, since it uses less digits than its factorization.

22783397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19292 (or 19279 counting only the distinct ones).

The product of its digits is 127008, while the sum is 41.

The square root of 22783397 is about 4773.1956800450. The cubic root of 22783397 is about 283.4911414626.

The spelling of 22783397 in words is "twenty-two million, seven hundred eighty-three thousand, three hundred ninety-seven".