22079765 has 4 divisors (see below), whose sum is σ = 26495724. Its totient is φ = 17663808.

The previous prime is 22079749. The next prime is 22079777. The reversal of 22079765 is 56797022.

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 7349521 + 14730244 = 2711^2 + 3838^2 .

It is a cyclic number.

It is not a de Polignac number, because 22079765 - 2⁴ = 22079749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 2207972 + ... + 2207981.

It is an arithmetic number, because the mean of its divisors is an integer number (6623931).

Almost surely, 2^22079765 is an apocalyptic number.

It is an amenable number.

22079765 is a deficient number, since it is larger than the sum of its proper divisors (4415959).

22079765 is an equidigital number, since it uses as much as digits as its factorization.

22079765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4415958.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 22079765 is about 4698.9110440612. The cubic root of 22079765 is about 280.5421680520.

The spelling of 22079765 in words is "twenty-two million, seventy-nine thousand, seven hundred sixty-five".