86859043 has 4 divisors (see below), whose sum is σ = 86997328. Its totient is φ = 86720760.

The previous prime is 86859041. The next prime is 86859079. The reversal of 86859043 is 34095868.

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 86859043 - 2¹ = 86859041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86859041) 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, 68196 + ... + 69457.

It is an arithmetic number, because the mean of its divisors is an integer number (21749332).

Almost surely, 2^86859043 is an apocalyptic number.

86859043 is a deficient number, since it is larger than the sum of its proper divisors (138285).

86859043 is a wasteful number, since it uses less digits than its factorization.

86859043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138284.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 86859043 is about 9319.8199016934. The cubic root of 86859043 is about 442.8653273796.

The spelling of 86859043 in words is "eighty-six million, eight hundred fifty-nine thousand, forty-three".