22167797 has 4 divisors (see below), whose sum is σ = 22184940. Its totient is φ = 22150656.

The previous prime is 22167793. The next prime is 22167799. The reversal of 22167797 is 79776122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79776122 = 2 ⋅39888061.

It can be written as a sum of positive squares in 2 ways, for example, as 1062961 + 21104836 = 1031^2 + 4594^2 .

It is a cyclic number.

It is not a de Polignac number, because 22167797 - 2² = 22167793 is a prime.

It is a super-2 number, since 2×22167797² = 982822447666418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22167793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6458 + ... + 9275.

It is an arithmetic number, because the mean of its divisors is an integer number (5546235).

Almost surely, 2^22167797 is an apocalyptic number.

It is an amenable number.

22167797 is a deficient number, since it is larger than the sum of its proper divisors (17143).

22167797 is a wasteful number, since it uses less digits than its factorization.

22167797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17142.

The product of its digits is 74088, while the sum is 41.

The square root of 22167797 is about 4708.2690025104. The cubic root of 22167797 is about 280.9145140855.

The spelling of 22167797 in words is "twenty-two million, one hundred sixty-seven thousand, seven hundred ninety-seven".