860417660 has 48 divisors (see below), whose sum is σ = 1919517600. Its totient is φ = 323046144.

The previous prime is 860417653. The next prime is 860417669. The reversal of 860417660 is 66714068.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (860417669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31034 + ... + 51806.

It is an arithmetic number, because the mean of its divisors is an integer number (39989950).

Almost surely, 2^860417660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 860417660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (959758800).

860417660 is an abundant number, since it is smaller than the sum of its proper divisors (1059099940).

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

860417660 is a wasteful number, since it uses less digits than its factorization.

860417660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20910 (or 20908 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 860417660 is about 29332.8767767500. The cubic root of 860417660 is about 951.1224627171.

The spelling of 860417660 in words is "eight hundred sixty million, four hundred seventeen thousand, six hundred sixty".