870782118 has 16 divisors (see below), whose sum is σ = 1749172080. Its totient is φ = 288992736.

The previous prime is 870782071. The next prime is 870782123. The reversal of 870782118 is 811287078.

It is a super-2 number, since 2×870782118² = 1516522994057131848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 870782118.

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, 315505 + ... + 318252.

It is an arithmetic number, because the mean of its divisors is an integer number (109323255).

Almost surely, 2^870782118 is an apocalyptic number.

870782118 is an abundant number, since it is smaller than the sum of its proper divisors (878389962).

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

870782118 is a wasteful number, since it uses less digits than its factorization.

870782118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633991.

The product of its (nonzero) digits is 50176, while the sum is 42.

The square root of 870782118 is about 29509.0175709053. The cubic root of 870782118 is about 954.9262547333.

The spelling of 870782118 in words is "eight hundred seventy million, seven hundred eighty-two thousand, one hundred eighteen".