226748857 has 2 divisors, whose sum is σ = 226748858. Its totient is φ = 226748856.

The previous prime is 226748833. The next prime is 226748903. The reversal of 226748857 is 758847622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216354681 + 10394176 = 14709^2 + 3224^2 .

It is a cyclic number.

It is not a de Polignac number, because 226748857 - 2¹⁹ = 226224569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 226748857.

It is not a weakly prime, because it can be changed into another prime (226748807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113374428 + 113374429.

It is an arithmetic number, because the mean of its divisors is an integer number (113374429).

Almost surely, 2^226748857 is an apocalyptic number.

It is an amenable number.

226748857 is a deficient number, since it is larger than the sum of its proper divisors (1).

226748857 is an equidigital number, since it uses as much as digits as its factorization.

226748857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1505280, while the sum is 49.

The square root of 226748857 is about 15058.1823936357. The cubic root of 226748857 is about 609.7919715258.

The spelling of 226748857 in words is "two hundred twenty-six million, seven hundred forty-eight thousand, eight hundred fifty-seven".