22779159 has 8 divisors (see below), whose sum is σ = 32708592. Its totient is φ = 14017920.

The previous prime is 22779151. The next prime is 22779173. The reversal of 22779159 is 95197722.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22779159 - 2³ = 22779151 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22779159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22779151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292002 + ... + 292079.

It is an arithmetic number, because the mean of its divisors is an integer number (4088574).

Almost surely, 2^22779159 is an apocalyptic number.

22779159 is a deficient number, since it is larger than the sum of its proper divisors (9929433).

22779159 is a wasteful number, since it uses less digits than its factorization.

22779159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584097.

The product of its digits is 79380, while the sum is 42.

The square root of 22779159 is about 4772.7517220153. The cubic root of 22779159 is about 283.4735627267.

The spelling of 22779159 in words is "twenty-two million, seven hundred seventy-nine thousand, one hundred fifty-nine".