86201879 has 4 divisors (see below), whose sum is σ = 90738840. Its totient is φ = 81664920.

The previous prime is 86201873. The next prime is 86201909. The reversal of 86201879 is 97810268.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86201879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86201873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2268452 + ... + 2268489.

It is an arithmetic number, because the mean of its divisors is an integer number (22684710).

Almost surely, 2^86201879 is an apocalyptic number.

86201879 is a deficient number, since it is larger than the sum of its proper divisors (4536961).

86201879 is a wasteful number, since it uses less digits than its factorization.

86201879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4536960.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 86201879 is about 9284.4967014911. The cubic root of 86201879 is about 441.7456119631.

The spelling of 86201879 in words is "eighty-six million, two hundred one thousand, eight hundred seventy-nine".