224447987 has 2 divisors, whose sum is σ = 224447988. Its totient is φ = 224447986.

The previous prime is 224447963. The next prime is 224448001. The reversal of 224447987 is 789744422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 224447987 - 2¹⁶ = 224382451 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (224447947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112223993 + 112223994.

It is an arithmetic number, because the mean of its divisors is an integer number (112223994).

Almost surely, 2^224447987 is an apocalyptic number.

224447987 is a deficient number, since it is larger than the sum of its proper divisors (1).

224447987 is an equidigital number, since it uses as much as digits as its factorization.

224447987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 903168, while the sum is 47.

The square root of 224447987 is about 14981.5882669362. The cubic root of 224447987 is about 607.7223915521.

The spelling of 224447987 in words is "two hundred twenty-four million, four hundred forty-seven thousand, nine hundred eighty-seven".