447553973 has 2 divisors, whose sum is σ = 447553974. Its totient is φ = 447553972.

The previous prime is 447553943. The next prime is 447553979. The reversal of 447553973 is 379355744.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 243578449 + 203975524 = 15607^2 + 14282^2 .

It is a cyclic number.

It is not a de Polignac number, because 447553973 - 2¹⁰ = 447552949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (447553979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223776986 + 223776987.

It is an arithmetic number, because the mean of its divisors is an integer number (223776987).

Almost surely, 2^447553973 is an apocalyptic number.

It is an amenable number.

447553973 is a deficient number, since it is larger than the sum of its proper divisors (1).

447553973 is an equidigital number, since it uses as much as digits as its factorization.

447553973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1587600, while the sum is 47.

The square root of 447553973 is about 21155.4714672115. The cubic root of 447553973 is about 764.9184545771.

The spelling of 447553973 in words is "four hundred forty-seven million, five hundred fifty-three thousand, nine hundred seventy-three".