828381379 has 4 divisors (see below), whose sum is σ = 946721584. Its totient is φ = 710041176.

The previous prime is 828381377. The next prime is 828381383. The reversal of 828381379 is 973183828.

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

It is a cyclic number.

It is not a de Polignac number, because 828381379 - 2¹ = 828381377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (828381377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59170092 + ... + 59170105.

It is an arithmetic number, because the mean of its divisors is an integer number (236680396).

Almost surely, 2^828381379 is an apocalyptic number.

828381379 is a deficient number, since it is larger than the sum of its proper divisors (118340205).

828381379 is a wasteful number, since it uses less digits than its factorization.

828381379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118340204.

The product of its digits is 580608, while the sum is 49.

The square root of 828381379 is about 28781.6152951845. The cubic root of 828381379 is about 939.1683375158.

The spelling of 828381379 in words is "eight hundred twenty-eight million, three hundred eighty-one thousand, three hundred seventy-nine".