22277413 has 2 divisors, whose sum is σ = 22277414. Its totient is φ = 22277412.

The previous prime is 22277377. The next prime is 22277459. The reversal of 22277413 is 31477222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21734244 + 543169 = 4662^2 + 737^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22277413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22277513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11138706 + 11138707.

It is an arithmetic number, because the mean of its divisors is an integer number (11138707).

Almost surely, 2^22277413 is an apocalyptic number.

It is an amenable number.

22277413 is a deficient number, since it is larger than the sum of its proper divisors (1).

22277413 is an equidigital number, since it uses as much as digits as its factorization.

22277413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4704, while the sum is 28.

The square root of 22277413 is about 4719.8954437572. The cubic root of 22277413 is about 281.3767778731.

The spelling of 22277413 in words is "twenty-two million, two hundred seventy-seven thousand, four hundred thirteen".