22107897 has 48 divisors (see below), whose sum is σ = 38892672. Its totient is φ = 12286080.

The previous prime is 22107863. The next prime is 22107901. The reversal of 22107897 is 79870122.

It is not a de Polignac number, because 22107897 - 2¹¹ = 22105849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22107857) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 69583 + ... + 69899.

It is an arithmetic number, because the mean of its divisors is an integer number (810264).

Almost surely, 2^22107897 is an apocalyptic number.

22107897 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

22107897 is a deficient number, since it is larger than the sum of its proper divisors (16784775).

22107897 is an equidigital number, since it uses as much as digits as its factorization.

22107897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380 (or 368 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 22107897 is about 4701.9035506909. The cubic root of 22107897 is about 280.6612644705.

The spelling of 22107897 in words is "twenty-two million, one hundred seven thousand, eight hundred ninety-seven".