22244897 has 4 divisors (see below), whose sum is σ = 22316736. Its totient is φ = 22173060.

The previous prime is 22244879. The next prime is 22244903. The reversal of 22244897 is 79844222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79844222 = 2 ⋅39922111.

It is a cyclic number.

It is not a de Polignac number, because 22244897 - 2⁸ = 22244641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22244897.

It is not an unprimeable number, because it can be changed into a prime (24244897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35453 + ... + 36074.

It is an arithmetic number, because the mean of its divisors is an integer number (5579184).

Almost surely, 2^22244897 is an apocalyptic number.

It is an amenable number.

22244897 is a deficient number, since it is larger than the sum of its proper divisors (71839).

22244897 is an equidigital number, since it uses as much as digits as its factorization.

22244897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71838.

The product of its digits is 64512, while the sum is 38.

The square root of 22244897 is about 4716.4496180920. The cubic root of 22244897 is about 281.2398125034.

The spelling of 22244897 in words is "twenty-two million, two hundred forty-four thousand, eight hundred ninety-seven".