447445845 has 96 divisors (see below), whose sum is σ = 972601344. Its totient is φ = 184867200.

The previous prime is 447445837. The next prime is 447445853. The reversal of 447445845 is 548544744.

It is an interprime number because it is at equal distance from previous prime (447445837) and next prime (447445853).

It is not a de Polignac number, because 447445845 - 2³ = 447445837 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 447445845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 911050 + ... + 911540.

It is an arithmetic number, because the mean of its divisors is an integer number (10131264).

Almost surely, 2^447445845 is an apocalyptic number.

447445845 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

447445845 is an abundant number, since it is smaller than the sum of its proper divisors (525155499).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

447445845 is a wasteful number, since it uses less digits than its factorization.

447445845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783 (or 780 counting only the distinct ones).

The product of its digits is 1433600, while the sum is 45.

The square root of 447445845 is about 21152.9157564625. The cubic root of 447445845 is about 764.8568487751.

The spelling of 447445845 in words is "four hundred forty-seven million, four hundred forty-five thousand, eight hundred forty-five".