223714921 has 2 divisors, whose sum is σ = 223714922. Its totient is φ = 223714920.

The previous prime is 223714889. The next prime is 223714991. The reversal of 223714921 is 129417322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196560400 + 27154521 = 14020^2 + 5211^2 .

It is a cyclic number.

It is not a de Polignac number, because 223714921 - 2⁵ = 223714889 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (223714991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111857460 + 111857461.

It is an arithmetic number, because the mean of its divisors is an integer number (111857461).

Almost surely, 2^223714921 is an apocalyptic number.

It is an amenable number.

223714921 is a deficient number, since it is larger than the sum of its proper divisors (1).

223714921 is an equidigital number, since it uses as much as digits as its factorization.

223714921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 31.

The square root of 223714921 is about 14957.1026940380. The cubic root of 223714921 is about 607.0600457903.

The spelling of 223714921 in words is "two hundred twenty-three million, seven hundred fourteen thousand, nine hundred twenty-one".