224385977 has 2 divisors, whose sum is σ = 224385978. Its totient is φ = 224385976.

The previous prime is 224385971. The next prime is 224385979. The reversal of 224385977 is 779583422.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 223084096 + 1301881 = 14936^2 + 1141^2 .

It is a cyclic number.

It is not a de Polignac number, because 224385977 - 2⁴ = 224385961 is a prime.

Together with 224385979, 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 (224385971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112192988 + 112192989.

It is an arithmetic number, because the mean of its divisors is an integer number (112192989).

Almost surely, 2^224385977 is an apocalyptic number.

It is an amenable number.

224385977 is a deficient number, since it is larger than the sum of its proper divisors (1).

224385977 is an equidigital number, since it uses as much as digits as its factorization.

224385977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 47.

The square root of 224385977 is about 14979.5185837196. The cubic root of 224385977 is about 607.6664196586. Note that the first 3 decimals are identical.

The spelling of 224385977 in words is "two hundred twenty-four million, three hundred eighty-five thousand, nine hundred seventy-seven".