828693099 has 20 divisors (see below), whose sum is σ = 1333150896. Its totient is φ = 509964336.

The previous prime is 828693097. The next prime is 828693121. The reversal of 828693099 is 990396828.

It is not a de Polignac number, because 828693099 - 2¹ = 828693097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (828693097) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 392439 + ... + 394544.

Almost surely, 2^828693099 is an apocalyptic number.

828693099 is a deficient number, since it is larger than the sum of its proper divisors (504457797).

828693099 is a wasteful number, since it uses less digits than its factorization.

828693099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787008 (or 786999 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The square root of 828693099 is about 28787.0300482700. The cubic root of 828693099 is about 939.2861257906.

The spelling of 828693099 in words is "eight hundred twenty-eight million, six hundred ninety-three thousand, ninety-nine".