447220855 has 16 divisors (see below), whose sum is σ = 573027840. Its totient is φ = 334258848.

The previous prime is 447220831. The next prime is 447220871. The reversal of 447220855 is 558022744.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-447220855 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40275 + ... + 50164.

It is an arithmetic number, because the mean of its divisors is an integer number (35814240).

Almost surely, 2^447220855 is an apocalyptic number.

447220855 is a deficient number, since it is larger than the sum of its proper divisors (125806985).

447220855 is a wasteful number, since it uses less digits than its factorization.

447220855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90510.

The product of its (nonzero) digits is 89600, while the sum is 37.

The square root of 447220855 is about 21147.5969083960. The cubic root of 447220855 is about 764.7286291662.

The spelling of 447220855 in words is "four hundred forty-seven million, two hundred twenty thousand, eight hundred fifty-five".