86994223 has 2 divisors, whose sum is σ = 86994224. Its totient is φ = 86994222.

The previous prime is 86994121. The next prime is 86994233. The reversal of 86994223 is 32249968.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86994223 - 2²⁵ = 53439791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86994223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86994233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43497111 + 43497112.

It is an arithmetic number, because the mean of its divisors is an integer number (43497112).

Almost surely, 2^86994223 is an apocalyptic number.

86994223 is a deficient number, since it is larger than the sum of its proper divisors (1).

86994223 is an equidigital number, since it uses as much as digits as its factorization.

86994223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 43.

The square root of 86994223 is about 9327.0693682421. The cubic root of 86994223 is about 443.0949542273.

The spelling of 86994223 in words is "eighty-six million, nine hundred ninety-four thousand, two hundred twenty-three".