22979861 has 8 divisors (see below), whose sum is σ = 24129120. Its totient is φ = 21854448.

The previous prime is 22979857. The next prime is 22979867. The reversal of 22979861 is 16897922.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22979861 - 2² = 22979857 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 (22979867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3971 + ... + 7856.

It is an arithmetic number, because the mean of its divisors is an integer number (3016140).

Almost surely, 2^22979861 is an apocalyptic number.

It is an amenable number.

22979861 is a deficient number, since it is larger than the sum of its proper divisors (1149259).

22979861 is a wasteful number, since it uses less digits than its factorization.

22979861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11923.

The product of its digits is 108864, while the sum is 44.

The square root of 22979861 is about 4793.7314276042. The cubic root of 22979861 is about 284.3036699252.

The spelling of 22979861 in words is "twenty-two million, nine hundred seventy-nine thousand, eight hundred sixty-one".