828878097 has 16 divisors (see below), whose sum is σ = 1169779520. Its totient is φ = 520603200.

The previous prime is 828878023. The next prime is 828878101. The reversal of 828878097 is 790878828.

828878097 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-828878097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (828878497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29854 + ... + 50487.

It is an arithmetic number, because the mean of its divisors is an integer number (73111220).

Almost surely, 2^828878097 is an apocalyptic number.

It is an amenable number.

828878097 is a deficient number, since it is larger than the sum of its proper divisors (340901423).

828878097 is a wasteful number, since it uses less digits than its factorization.

828878097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80544.

The product of its (nonzero) digits is 3612672, while the sum is 57.

The square root of 828878097 is about 28790.2430868515. The cubic root of 828878097 is about 939.3560162104.

The spelling of 828878097 in words is "eight hundred twenty-eight million, eight hundred seventy-eight thousand, ninety-seven".