828365091 has 16 divisors (see below), whose sum is σ = 1120840704. Its totient is φ = 544083264.

The previous prime is 828365089. The next prime is 828365093. The reversal of 828365091 is 190563828.

It is an interprime number because it is at equal distance from previous prime (828365089) and next prime (828365093).

It is not a de Polignac number, because 828365091 - 2¹ = 828365089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (828365093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297990 + ... + 300756.

It is an arithmetic number, because the mean of its divisors is an integer number (70052544).

Almost surely, 2^828365091 is an apocalyptic number.

828365091 is a deficient number, since it is larger than the sum of its proper divisors (292475613).

828365091 is a wasteful number, since it uses less digits than its factorization.

828365091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4210.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 828365091 is about 28781.3323353871. The cubic root of 828365091 is about 939.1621820282.

The spelling of 828365091 in words is "eight hundred twenty-eight million, three hundred sixty-five thousand, ninety-one".