86012489 has 2 divisors, whose sum is σ = 86012490. Its totient is φ = 86012488.

The previous prime is 86012471. The next prime is 86012539. The reversal of 86012489 is 98421068.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78765625 + 7246864 = 8875^2 + 2692^2 .

It is a cyclic number.

It is not a de Polignac number, because 86012489 - 2⁸ = 86012233 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (86012189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43006244 + 43006245.

It is an arithmetic number, because the mean of its divisors is an integer number (43006245).

Almost surely, 2^86012489 is an apocalyptic number.

It is an amenable number.

86012489 is a deficient number, since it is larger than the sum of its proper divisors (1).

86012489 is an equidigital number, since it uses as much as digits as its factorization.

86012489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 86012489 is about 9274.2918328032. The cubic root of 86012489 is about 441.4218620735.

The spelling of 86012489 in words is "eighty-six million, twelve thousand, four hundred eighty-nine".