859877616 has 40 divisors (see below), whose sum is σ = 2392225360. Its totient is φ = 264577536.

The previous prime is 859877591. The next prime is 859877621. The reversal of 859877616 is 616778958.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 688381 + ... + 689628.

It is an arithmetic number, because the mean of its divisors is an integer number (59805634).

Almost surely, 2^859877616 is an apocalyptic number.

It is an amenable number.

859877616 is an abundant number, since it is smaller than the sum of its proper divisors (1532347744).

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

859877616 is a wasteful number, since it uses less digits than its factorization.

859877616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378033 (or 1378027 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 57.

The square root of 859877616 is about 29323.6698931085. The cubic root of 859877616 is about 950.9234293465.

It can be divided in two parts, 859 and 877616, that added together give a triangular number (878475 = T₁₃₂₅).

The spelling of 859877616 in words is "eight hundred fifty-nine million, eight hundred seventy-seven thousand, six hundred sixteen".