447773899 has 2 divisors, whose sum is σ = 447773900. Its totient is φ = 447773898.

The previous prime is 447773849. The next prime is 447773941. The reversal of 447773899 is 998377744.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 447773899 - 2⁷ = 447773771 is a prime.

It is not a weakly prime, because it can be changed into another prime (447773849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223886949 + 223886950.

It is an arithmetic number, because the mean of its divisors is an integer number (223886950).

Almost surely, 2^447773899 is an apocalyptic number.

447773899 is a deficient number, since it is larger than the sum of its proper divisors (1).

447773899 is an equidigital number, since it uses as much as digits as its factorization.

447773899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10668672, while the sum is 58.

The square root of 447773899 is about 21160.6686803607. The cubic root of 447773899 is about 765.0437265507.

The spelling of 447773899 in words is "four hundred forty-seven million, seven hundred seventy-three thousand, eight hundred ninety-nine".