828723419 has 4 divisors (see below), whose sum is σ = 864754896. Its totient is φ = 792691944.

The previous prime is 828723409. The next prime is 828723433. The reversal of 828723419 is 914327828.

828723419 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 828723419 - 2⁸ = 828723163 is a prime.

It is a super-2 number, since 2×828723419² = 1373565010398099122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 828723419.

It is not an unprimeable number, because it can be changed into a prime (828723409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18015704 + ... + 18015749.

It is an arithmetic number, because the mean of its divisors is an integer number (216188724).

Almost surely, 2^828723419 is an apocalyptic number.

828723419 is a deficient number, since it is larger than the sum of its proper divisors (36031477).

828723419 is a wasteful number, since it uses less digits than its factorization.

828723419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36031476.

The product of its digits is 193536, while the sum is 44.

The square root of 828723419 is about 28787.5566695057. The cubic root of 828723419 is about 939.2975811001.

The spelling of 828723419 in words is "eight hundred twenty-eight million, seven hundred twenty-three thousand, four hundred nineteen".