860986880 has 160 divisors (see below), whose sum is σ = 2280979008. Its totient is φ = 309657600.

The previous prime is 860986877. The next prime is 860986927. The reversal of 860986880 is 88689068.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (160).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1364165 + ... + 1364795.

Almost surely, 2^860986880 is an apocalyptic number.

860986880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 860986880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1140489504).

860986880 is an abundant number, since it is smaller than the sum of its proper divisors (1419992128).

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

860986880 is a wasteful number, since it uses less digits than its factorization.

860986880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708 (or 692 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 53.

The square root of 860986880 is about 29342.5779371888. The cubic root of 860986880 is about 951.3321587782.

The spelling of 860986880 in words is "eight hundred sixty million, nine hundred eighty-six thousand, eight hundred eighty".