828692945 has 4 divisors (see below), whose sum is σ = 994431540. Its totient is φ = 662954352.

The previous prime is 828692941. The next prime is 828692957. The reversal of 828692945 is 549296828.

828692945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 402724624 + 425968321 = 20068^2 + 20639^2 .

It is a cyclic number.

It is not a de Polignac number, because 828692945 - 2² = 828692941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (828692941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82869290 + ... + 82869299.

It is an arithmetic number, because the mean of its divisors is an integer number (248607885).

Almost surely, 2^828692945 is an apocalyptic number.

It is an amenable number.

828692945 is a deficient number, since it is larger than the sum of its proper divisors (165738595).

828692945 is a wasteful number, since it uses less digits than its factorization.

828692945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165738594.

The product of its digits is 2488320, while the sum is 53.

The square root of 828692945 is about 28787.0273734542. The cubic root of 828692945 is about 939.2860676065.

The spelling of 828692945 in words is "eight hundred twenty-eight million, six hundred ninety-two thousand, nine hundred forty-five".