86201911 has 2 divisors, whose sum is σ = 86201912. Its totient is φ = 86201910.

The previous prime is 86201909. The next prime is 86201923. The reversal of 86201911 is 11910268.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86201911 - 2¹ = 86201909 is a prime.

Together with 86201909, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 86201911.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86201411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43100955 + 43100956.

It is an arithmetic number, because the mean of its divisors is an integer number (43100956).

Almost surely, 2^86201911 is an apocalyptic number.

86201911 is a deficient number, since it is larger than the sum of its proper divisors (1).

86201911 is an equidigital number, since it uses as much as digits as its factorization.

86201911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 86201911 is about 9284.4984247939. The cubic root of 86201911 is about 441.7456666249.

The spelling of 86201911 in words is "eighty-six million, two hundred one thousand, nine hundred eleven".