222946447 has 2 divisors, whose sum is σ = 222946448. Its totient is φ = 222946446.

The previous prime is 222946439. The next prime is 222946499. The reversal of 222946447 is 744649222.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222946447 - 2³ = 222946439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222946547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111473223 + 111473224.

It is an arithmetic number, because the mean of its divisors is an integer number (111473224).

Almost surely, 2^222946447 is an apocalyptic number.

222946447 is a deficient number, since it is larger than the sum of its proper divisors (1).

222946447 is an equidigital number, since it uses as much as digits as its factorization.

222946447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 40.

The square root of 222946447 is about 14931.3913283391. The cubic root of 222946447 is about 606.3641526357.

The spelling of 222946447 in words is "two hundred twenty-two million, nine hundred forty-six thousand, four hundred forty-seven".