224777939 has 2 divisors, whose sum is σ = 224777940. Its totient is φ = 224777938.

The previous prime is 224777933. The next prime is 224777941. The reversal of 224777939 is 939777422.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224777939 is a prime.

It is a super-2 number, since 2×224777939² = 101050243722175442, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 224777941, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (224777933) 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, 112388969 + 112388970.

It is an arithmetic number, because the mean of its divisors is an integer number (112388970).

Almost surely, 2^224777939 is an apocalyptic number.

224777939 is a deficient number, since it is larger than the sum of its proper divisors (1).

224777939 is an equidigital number, since it uses as much as digits as its factorization.

224777939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1333584, while the sum is 50.

The square root of 224777939 is about 14992.5961394283. The cubic root of 224777939 is about 608.0200418644.

The spelling of 224777939 in words is "two hundred twenty-four million, seven hundred seventy-seven thousand, nine hundred thirty-nine".