22398897 has 8 divisors (see below), whose sum is σ = 30201120. Its totient is φ = 14764640.

The previous prime is 22398881. The next prime is 22398899. The reversal of 22398897 is 79889322.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22398897 - 2⁴ = 22398881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22398899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41679 + ... + 42212.

It is an arithmetic number, because the mean of its divisors is an integer number (3775140).

Almost surely, 2^22398897 is an apocalyptic number.

It is an amenable number.

22398897 is a deficient number, since it is larger than the sum of its proper divisors (7802223).

22398897 is an equidigital number, since it uses as much as digits as its factorization.

22398897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83983.

The product of its digits is 435456, while the sum is 48.

The square root of 22398897 is about 4732.7472994023. The cubic root of 22398897 is about 281.8873223194.

The spelling of 22398897 in words is "twenty-two million, three hundred ninety-eight thousand, eight hundred ninety-seven".