224700857 has 2 divisors, whose sum is σ = 224700858. Its totient is φ = 224700856.

The previous prime is 224700797. The next prime is 224700893. The reversal of 224700857 is 758007422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 180929401 + 43771456 = 13451^2 + 6616^2 .

It is a cyclic number.

It is not a de Polignac number, because 224700857 - 2¹⁶ = 224635321 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (224700257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112350428 + 112350429.

It is an arithmetic number, because the mean of its divisors is an integer number (112350429).

Almost surely, 2^224700857 is an apocalyptic number.

It is an amenable number.

224700857 is a deficient number, since it is larger than the sum of its proper divisors (1).

224700857 is an equidigital number, since it uses as much as digits as its factorization.

224700857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 224700857 is about 14990.0252501455. The cubic root of 224700857 is about 607.9505321379.

The spelling of 224700857 in words is "two hundred twenty-four million, seven hundred thousand, eight hundred fifty-seven".