870808880 has 20 divisors (see below), whose sum is σ = 2024630832. Its totient is φ = 348323520.

The previous prime is 870808871. The next prime is 870808889. The reversal of 870808880 is 88808078.

It is an interprime number because it is at equal distance from previous prime (870808871) and next prime (870808889).

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (870808889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5442476 + ... + 5442635.

Almost surely, 2^870808880 is an apocalyptic number.

870808880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

870808880 is an abundant number, since it is smaller than the sum of its proper divisors (1153821952).

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

870808880 is a wasteful number, since it uses less digits than its factorization.

870808880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10885124 (or 10885118 counting only the distinct ones).

The product of its (nonzero) digits is 229376, while the sum is 47.

The square root of 870808880 is about 29509.4710220295. The cubic root of 870808880 is about 954.9360373085.

The spelling of 870808880 in words is "eight hundred seventy million, eight hundred eight thousand, eight hundred eighty".