860085780 has 48 divisors (see below), whose sum is σ = 2414759424. Its totient is φ = 228735360.

The previous prime is 860085769. The next prime is 860085791. The reversal of 860085780 is 87580068.

It is a happy number.

860085780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (860085769) and next prime (860085791).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

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, 3165 + ... + 41595.

It is an arithmetic number, because the mean of its divisors is an integer number (50307488).

Almost surely, 2^860085780 is an apocalyptic number.

It is an amenable number.

860085780 is an abundant number, since it is smaller than the sum of its proper divisors (1554673644).

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

860085780 is a wasteful number, since it uses less digits than its factorization.

860085780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38816 (or 38814 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 42.

The square root of 860085780 is about 29327.2190976233. The cubic root of 860085780 is about 951.0001581157. Note that the first 3 decimals are identical.

The spelling of 860085780 in words is "eight hundred sixty million, eighty-five thousand, seven hundred eighty".