224099989 has 2 divisors, whose sum is σ = 224099990. Its totient is φ = 224099988.

The previous prime is 224099983. The next prime is 224100013. The reversal of 224099989 is 989990422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212197489 + 11902500 = 14567^2 + 3450^2 .

It is a cyclic number.

It is not a de Polignac number, because 224099989 - 2⁵ = 224099957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224099983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112049994 + 112049995.

It is an arithmetic number, because the mean of its divisors is an integer number (112049995).

Almost surely, 2^224099989 is an apocalyptic number.

It is an amenable number.

224099989 is a deficient number, since it is larger than the sum of its proper divisors (1).

224099989 is an equidigital number, since it uses as much as digits as its factorization.

224099989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 839808, while the sum is 52.

The square root of 224099989 is about 14969.9695724474. The cubic root of 224099989 is about 607.4081456634.

The spelling of 224099989 in words is "two hundred twenty-four million, ninety-nine thousand, nine hundred eighty-nine".