819875713 has 4 divisors (see below), whose sum is σ = 824168448. Its totient is φ = 815582980.

The previous prime is 819875671. The next prime is 819875723. The reversal of 819875713 is 317578918.

819875713 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-819875713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (819875723) 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, 2146081 + ... + 2146462.

It is an arithmetic number, because the mean of its divisors is an integer number (206042112).

Almost surely, 2^819875713 is an apocalyptic number.

It is an amenable number.

819875713 is a deficient number, since it is larger than the sum of its proper divisors (4292735).

819875713 is a wasteful number, since it uses less digits than its factorization.

819875713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4292734.

The product of its digits is 423360, while the sum is 49.

The square root of 819875713 is about 28633.4718991603. The cubic root of 819875713 is about 935.9428707339.

The spelling of 819875713 in words is "eight hundred nineteen million, eight hundred seventy-five thousand, seven hundred thirteen".