860389641 has 8 divisors (see below), whose sum is σ = 1274651360. Its totient is φ = 573593076.

The previous prime is 860389639. The next prime is 860389657. The reversal of 860389641 is 146983068.

It is not a de Polignac number, because 860389641 - 2¹ = 860389639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (860389631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15933115 + ... + 15933168.

It is an arithmetic number, because the mean of its divisors is an integer number (159331420).

Almost surely, 2^860389641 is an apocalyptic number.

It is an amenable number.

860389641 is a deficient number, since it is larger than the sum of its proper divisors (414261719).

860389641 is a wasteful number, since it uses less digits than its factorization.

860389641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31866292 (or 31866286 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 860389641 is about 29332.3991688372. The cubic root of 860389641 is about 951.1121383553.

The spelling of 860389641 in words is "eight hundred sixty million, three hundred eighty-nine thousand, six hundred forty-one".