860669871 has 4 divisors (see below), whose sum is σ = 1147559832. Its totient is φ = 573779912.

The previous prime is 860669857. The next prime is 860669879. The reversal of 860669871 is 178966068.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 860669871 - 2⁶ = 860669807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (860669879) 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, 143444976 + ... + 143444981.

It is an arithmetic number, because the mean of its divisors is an integer number (286889958).

Almost surely, 2^860669871 is an apocalyptic number.

860669871 is a deficient number, since it is larger than the sum of its proper divisors (286889961).

860669871 is a wasteful number, since it uses less digits than its factorization.

860669871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286889960.

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 860669871 is about 29337.1755797998. The cubic root of 860669871 is about 951.2153866244.

The spelling of 860669871 in words is "eight hundred sixty million, six hundred sixty-nine thousand, eight hundred seventy-one".