22172097 has 16 divisors (see below), whose sum is σ = 31819392. Its totient is φ = 13681920.

The previous prime is 22172083. The next prime is 22172113. The reversal of 22172097 is 79027122.

It is a happy number.

It is not a de Polignac number, because 22172097 - 2⁴ = 22172081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22172027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 453 + ... + 6674.

It is an arithmetic number, because the mean of its divisors is an integer number (1988712).

Almost surely, 2^22172097 is an apocalyptic number.

It is an amenable number.

22172097 is a deficient number, since it is larger than the sum of its proper divisors (9647295).

22172097 is a wasteful number, since it uses less digits than its factorization.

22172097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7208.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 22172097 is about 4708.7256237755. The cubic root of 22172097 is about 280.9326763822.

The spelling of 22172097 in words is "twenty-two million, one hundred seventy-two thousand, ninety-seven".