869874866 has 8 divisors (see below), whose sum is σ = 1491214080. Its totient is φ = 372803508.

The previous prime is 869874833. The next prime is 869874877. The reversal of 869874866 is 668478968.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 869874799 and 869874808.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31066946 + ... + 31066973.

It is an arithmetic number, because the mean of its divisors is an integer number (186401760).

Almost surely, 2^869874866 is an apocalyptic number.

869874866 is a deficient number, since it is larger than the sum of its proper divisors (621339214).

869874866 is a wasteful number, since it uses less digits than its factorization.

869874866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62133928.

The product of its digits is 27869184, while the sum is 62.

The square root of 869874866 is about 29493.6411112633. The cubic root of 869874866 is about 954.5944994098.

The spelling of 869874866 in words is "eight hundred sixty-nine million, eight hundred seventy-four thousand, eight hundred sixty-six".