870858863 has 8 divisors (see below), whose sum is σ = 1047649920. Its totient is φ = 707163480.

The previous prime is 870858853. The next prime is 870858871. The reversal of 870858863 is 368858078.

870858863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 870858863 - 2¹⁰ = 870857839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870858853) 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, 3273773 + ... + 3274038.

It is an arithmetic number, because the mean of its divisors is an integer number (130956240).

Almost surely, 2^870858863 is an apocalyptic number.

870858863 is a deficient number, since it is larger than the sum of its proper divisors (176791057).

870858863 is a wasteful number, since it uses less digits than its factorization.

870858863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6547837.

The product of its (nonzero) digits is 2580480, while the sum is 53.

The square root of 870858863 is about 29510.3179074709. The cubic root of 870858863 is about 954.9543075459.

The spelling of 870858863 in words is "eight hundred seventy million, eight hundred fifty-eight thousand, eight hundred sixty-three".