86728903 has 2 divisors, whose sum is σ = 86728904. Its totient is φ = 86728902.

The previous prime is 86728897. The next prime is 86728907. The reversal of 86728903 is 30982768.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86728903 - 2⁵ = 86728871 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86728903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86728907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43364451 + 43364452.

It is an arithmetic number, because the mean of its divisors is an integer number (43364452).

Almost surely, 2^86728903 is an apocalyptic number.

86728903 is a deficient number, since it is larger than the sum of its proper divisors (1).

86728903 is an equidigital number, since it uses as much as digits as its factorization.

86728903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 86728903 is about 9312.8353899336. The cubic root of 86728903 is about 442.6440366535.

The spelling of 86728903 in words is "eighty-six million, seven hundred twenty-eight thousand, nine hundred three".