878400713 has 4 divisors (see below), whose sum is σ = 883995780. Its totient is φ = 872805648.

The previous prime is 878400709. The next prime is 878400827. The reversal of 878400713 is 317004878.

878400713 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 an emirpimes, since its reverse is a distinct semiprime: 317004878 = 2 ⋅158502439.

It can be written as a sum of positive squares in 2 ways, for example, as 291453184 + 586947529 = 17072^2 + 24227^2 .

It is a cyclic number.

It is not a de Polignac number, because 878400713 - 2² = 878400709 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (878402713) 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, 2797298 + ... + 2797611.

It is an arithmetic number, because the mean of its divisors is an integer number (220998945).

Almost surely, 2^878400713 is an apocalyptic number.

It is an amenable number.

878400713 is a deficient number, since it is larger than the sum of its proper divisors (5595067).

878400713 is a wasteful number, since it uses less digits than its factorization.

878400713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5595066.

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 878400713 is about 29637.8257130985. The cubic root of 878400713 is about 957.7031000287.

The spelling of 878400713 in words is "eight hundred seventy-eight million, four hundred thousand, seven hundred thirteen".