22196957 has 4 divisors (see below), whose sum is σ = 22207680. Its totient is φ = 22186236.

The previous prime is 22196953. The next prime is 22196963. The reversal of 22196957 is 75969122.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22196957 - 2² = 22196953 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22196953) 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, 1157 + ... + 6762.

It is an arithmetic number, because the mean of its divisors is an integer number (5551920).

Almost surely, 2^22196957 is an apocalyptic number.

It is an amenable number.

22196957 is a deficient number, since it is larger than the sum of its proper divisors (10723).

22196957 is an equidigital number, since it uses as much as digits as its factorization.

22196957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10722.

The product of its digits is 68040, while the sum is 41.

The square root of 22196957 is about 4711.3646642984. The cubic root of 22196957 is about 281.0376337939.

The spelling of 22196957 in words is "twenty-two million, one hundred ninety-six thousand, nine hundred fifty-seven".