86861205 has 12 divisors (see below), whose sum is σ = 150559500. Its totient is φ = 46325952.

The previous prime is 86861197. The next prime is 86861207. The reversal of 86861205 is 50216868.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 46335249 + 40525956 = 6807^2 + 6366^2 .

It is not a de Polignac number, because 86861205 - 2³ = 86861197 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 86861205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86861207) 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, 965080 + ... + 965169.

It is an arithmetic number, because the mean of its divisors is an integer number (12546625).

Almost surely, 2^86861205 is an apocalyptic number.

It is an amenable number.

86861205 is a deficient number, since it is larger than the sum of its proper divisors (63698295).

86861205 is a wasteful number, since it uses less digits than its factorization.

86861205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1930260 (or 1930257 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 86861205 is about 9319.9358903374. The cubic root of 86861205 is about 442.8690017884.

The spelling of 86861205 in words is "eighty-six million, eight hundred sixty-one thousand, two hundred five".