22298497 has 4 divisors (see below), whose sum is σ = 24013780. Its totient is φ = 20583216.

The previous prime is 22298483. The next prime is 22298501. The reversal of 22298497 is 79489222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4456321 + 17842176 = 2111^2 + 4224^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22298497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22298197) 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, 857622 + ... + 857647.

It is an arithmetic number, because the mean of its divisors is an integer number (6003445).

Almost surely, 2^22298497 is an apocalyptic number.

It is an amenable number.

22298497 is a deficient number, since it is larger than the sum of its proper divisors (1715283).

22298497 is a wasteful number, since it uses less digits than its factorization.

22298497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715282.

The product of its digits is 145152, while the sum is 43.

The square root of 22298497 is about 4722.1284395916. The cubic root of 22298497 is about 281.4655176412.

The spelling of 22298497 in words is "twenty-two million, two hundred ninety-eight thousand, four hundred ninety-seven".