870403873 has 8 divisors (see below), whose sum is σ = 894530792. Its totient is φ = 846308736.

The previous prime is 870403871. The next prime is 870403967. The reversal of 870403873 is 378304078.

870403873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 508186849 + 362217024 = 22543^2 + 19032^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 870403873 - 2¹ = 870403871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (870403871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54211 + ... + 68407.

It is an arithmetic number, because the mean of its divisors is an integer number (111816349).

Almost surely, 2^870403873 is an apocalyptic number.

It is an amenable number.

870403873 is a deficient number, since it is larger than the sum of its proper divisors (24126919).

870403873 is a wasteful number, since it uses less digits than its factorization.

870403873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15891.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 870403873 is about 29502.6079016754. The cubic root of 870403873 is about 954.7879697041.

The spelling of 870403873 in words is "eight hundred seventy million, four hundred three thousand, eight hundred seventy-three".