447240853 has 2 divisors, whose sum is σ = 447240854. Its totient is φ = 447240852.

The previous prime is 447240823. The next prime is 447240877. The reversal of 447240853 is 358042744.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 325513764 + 121727089 = 18042^2 + 11033^2 .

It is a cyclic number.

It is not a de Polignac number, because 447240853 - 2¹³ = 447232661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (447240823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223620426 + 223620427.

It is an arithmetic number, because the mean of its divisors is an integer number (223620427).

Almost surely, 2^447240853 is an apocalyptic number.

It is an amenable number.

447240853 is a deficient number, since it is larger than the sum of its proper divisors (1).

447240853 is an equidigital number, since it uses as much as digits as its factorization.

447240853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 107520, while the sum is 37.

The square root of 447240853 is about 21148.0697227903. The cubic root of 447240853 is about 764.7400275726.

The spelling of 447240853 in words is "four hundred forty-seven million, two hundred forty thousand, eight hundred fifty-three".