22401679 has 2 divisors, whose sum is σ = 22401680. Its totient is φ = 22401678.

The previous prime is 22401647. The next prime is 22401689. The reversal of 22401679 is 97610422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22401679 - 2⁵ = 22401647 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22401679.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22401619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11200839 + 11200840.

It is an arithmetic number, because the mean of its divisors is an integer number (11200840).

Almost surely, 2^22401679 is an apocalyptic number.

22401679 is a deficient number, since it is larger than the sum of its proper divisors (1).

22401679 is an equidigital number, since it uses as much as digits as its factorization.

22401679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 22401679 is about 4733.0411999052. The cubic root of 22401679 is about 281.8989922105.

The spelling of 22401679 in words is "twenty-two million, four hundred one thousand, six hundred seventy-nine".