86290111 has 2 divisors, whose sum is σ = 86290112. Its totient is φ = 86290110.

The previous prime is 86290097. The next prime is 86290123. The reversal of 86290111 is 11109268.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86290111 - 2¹⁷ = 86159039 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86290111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86297111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43145055 + 43145056.

It is an arithmetic number, because the mean of its divisors is an integer number (43145056).

Almost surely, 2^86290111 is an apocalyptic number.

86290111 is a deficient number, since it is larger than the sum of its proper divisors (1).

86290111 is an equidigital number, since it uses as much as digits as its factorization.

86290111 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 86290111 is about 9289.2470631370. The cubic root of 86290111 is about 441.8962769247.

Adding to 86290111 its reverse (11109268), we get a palindrome (97399379).

The spelling of 86290111 in words is "eighty-six million, two hundred ninety thousand, one hundred eleven".