884997945 has 24 divisors (see below), whose sum is σ = 1651997256. Its totient is φ = 435691008.

The previous prime is 884997937. The next prime is 884997977. The reversal of 884997945 is 549799488.

It can be written as a sum of positive squares in 4 ways, for example, as 147549609 + 737448336 = 12147^2 + 27156^2 .

It is not a de Polignac number, because 884997945 - 2³ = 884997937 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 755824 + ... + 756993.

It is an arithmetic number, because the mean of its divisors is an integer number (68833219).

Almost surely, 2^884997945 is an apocalyptic number.

It is an amenable number.

884997945 is a deficient number, since it is larger than the sum of its proper divisors (766999311).

884997945 is a wasteful number, since it uses less digits than its factorization.

884997945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512841 (or 1512838 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 63.

The square root of 884997945 is about 29748.9150222323. The cubic root of 884997945 is about 960.0947334899.

The spelling of 884997945 in words is "eight hundred eighty-four million, nine hundred ninety-seven thousand, nine hundred forty-five".