828215423 has 8 divisors (see below), whose sum is σ = 946747392. Its totient is φ = 709737336.

The previous prime is 828215419. The next prime is 828215431. The reversal of 828215423 is 324512828.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 828215423 - 2² = 828215419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828215473) 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 7 ways as a sum of consecutive naturals, for example, 27986 + ... + 49392.

It is an arithmetic number, because the mean of its divisors is an integer number (118343424).

Almost surely, 2^828215423 is an apocalyptic number.

828215423 is a deficient number, since it is larger than the sum of its proper divisors (118531969).

828215423 is a wasteful number, since it uses less digits than its factorization.

828215423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26941.

The product of its digits is 30720, while the sum is 35.

The square root of 828215423 is about 28778.7321298211. The cubic root of 828215423 is about 939.1056163933.

The spelling of 828215423 in words is "eight hundred twenty-eight million, two hundred fifteen thousand, four hundred twenty-three".