829287945 has 12 divisors (see below), whose sum is σ = 1437432516. Its totient is φ = 442286880.

The previous prime is 829287941. The next prime is 829287947. The reversal of 829287945 is 549782928.

It can be written as a sum of positive squares in 2 ways, for example, as 294568569 + 534719376 = 17163^2 + 23124^2 .

It is not a de Polignac number, because 829287945 - 2² = 829287941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 829287891 and 829287900.

It is not an unprimeable number, because it can be changed into a prime (829287941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9214266 + ... + 9214355.

It is an arithmetic number, because the mean of its divisors is an integer number (119786043).

Almost surely, 2^829287945 is an apocalyptic number.

It is an amenable number.

829287945 is a deficient number, since it is larger than the sum of its proper divisors (608144571).

829287945 is a wasteful number, since it uses less digits than its factorization.

829287945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18428632 (or 18428629 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 829287945 is about 28797.3600352532. The cubic root of 829287945 is about 939.5108157113.

The spelling of 829287945 in words is "eight hundred twenty-nine million, two hundred eighty-seven thousand, nine hundred forty-five".