22287413 has 2 divisors, whose sum is σ = 22287414. Its totient is φ = 22287412.

The previous prime is 22287389. The next prime is 22287443. The reversal of 22287413 is 31478222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22259524 + 27889 = 4718^2 + 167^2 .

It is a cyclic number.

It is not a de Polignac number, because 22287413 - 2²² = 18093109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22287443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11143706 + 11143707.

It is an arithmetic number, because the mean of its divisors is an integer number (11143707).

Almost surely, 2^22287413 is an apocalyptic number.

It is an amenable number.

22287413 is a deficient number, since it is larger than the sum of its proper divisors (1).

22287413 is an equidigital number, since it uses as much as digits as its factorization.

22287413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 29.

The square root of 22287413 is about 4720.9546704030. The cubic root of 22287413 is about 281.4188735279.

The spelling of 22287413 in words is "twenty-two million, two hundred eighty-seven thousand, four hundred thirteen".