870816654 has 12 divisors (see below), whose sum is σ = 1886769456. Its totient is φ = 290272212.

The previous prime is 870816649. The next prime is 870816677. The reversal of 870816654 is 456618078.

It is a happy number.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24189334 + ... + 24189369.

It is an arithmetic number, because the mean of its divisors is an integer number (157230788).

Almost surely, 2^870816654 is an apocalyptic number.

870816654 is an abundant number, since it is smaller than the sum of its proper divisors (1015952802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

870816654 is a wasteful number, since it uses less digits than its factorization.

870816654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48378711 (or 48378708 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 870816654 is about 29509.6027421584. The cubic root of 870816654 is about 954.9388789771.

The spelling of 870816654 in words is "eight hundred seventy million, eight hundred sixteen thousand, six hundred fifty-four".