224346989 has 2 divisors, whose sum is σ = 224346990. Its totient is φ = 224346988.

The previous prime is 224346979. The next prime is 224347043. The reversal of 224346989 is 989643422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 159012100 + 65334889 = 12610^2 + 8083^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224346989 is a prime.

It is a super-2 number, since 2×224346989² = 100663142946732242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224346979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112173494 + 112173495.

It is an arithmetic number, because the mean of its divisors is an integer number (112173495).

Almost surely, 2^224346989 is an apocalyptic number.

It is an amenable number.

224346989 is a deficient number, since it is larger than the sum of its proper divisors (1).

224346989 is an equidigital number, since it uses as much as digits as its factorization.

224346989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 746496, while the sum is 47.

The square root of 224346989 is about 14978.2171502486. The cubic root of 224346989 is about 607.6312227611.

The spelling of 224346989 in words is "two hundred twenty-four million, three hundred forty-six thousand, nine hundred eighty-nine".