86020843 has 4 divisors (see below), whose sum is σ = 86142880. Its totient is φ = 85898808.

The previous prime is 86020817. The next prime is 86020849. The reversal of 86020843 is 34802068.

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 86020843 - 2⁵ = 86020811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86020849) 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, 59955 + ... + 61372.

It is an arithmetic number, because the mean of its divisors is an integer number (21535720).

Almost surely, 2^86020843 is an apocalyptic number.

86020843 is a deficient number, since it is larger than the sum of its proper divisors (122037).

86020843 is a wasteful number, since it uses less digits than its factorization.

86020843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122036.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 86020843 is about 9274.7422066600. The cubic root of 86020843 is about 441.4361527070.

The spelling of 86020843 in words is "eighty-six million, twenty thousand, eight hundred forty-three".