86201878 has 24 divisors (see below), whose sum is σ = 150752232. Its totient is φ = 36860544.

The previous prime is 86201873. The next prime is 86201909. The reversal of 86201878 is 87810268.

It is a self number, because there is not a number n which added to its sum of digits gives 86201878.

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 polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65301 + ... + 66607.

It is an arithmetic number, because the mean of its divisors is an integer number (6281343).

Almost surely, 2^86201878 is an apocalyptic number.

86201878 is a deficient number, since it is larger than the sum of its proper divisors (64550354).

86201878 is a wasteful number, since it uses less digits than its factorization.

86201878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996 (or 1989 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 86201878 is about 9284.4966476379. The cubic root of 86201878 is about 441.7456102549.

The spelling of 86201878 in words is "eighty-six million, two hundred one thousand, eight hundred seventy-eight".