860809488 has 240 divisors, whose sum is σ = 2887815168. Its totient is φ = 216057600.

The previous prime is 860809487. The next prime is 860809489. The reversal of 860809488 is 884908068.

It is an interprime number because it is at equal distance from previous prime (860809487) and next prime (860809489).

It is a self number, because there is not a number n which added to its sum of digits gives 860809488.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (860809483) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1259995 + ... + 1260677.

Almost surely, 2^860809488 is an apocalyptic number.

860809488 is a gapful number since it is divisible by the number (88) 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 860809488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1443907584).

860809488 is an abundant number, since it is smaller than the sum of its proper divisors (2027005680).

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

860809488 is a wasteful number, since it uses less digits than its factorization.

860809488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754 (or 737 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 51.

The square root of 860809488 is about 29339.5550068504. Note that the first 3 decimals coincide. The cubic root of 860809488 is about 951.2668189108.

The spelling of 860809488 in words is "eight hundred sixty million, eight hundred nine thousand, four hundred eighty-eight".