86020849 has 2 divisors, whose sum is σ = 86020850. Its totient is φ = 86020848.

The previous prime is 86020817. The next prime is 86020871. The reversal of 86020849 is 94802068.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69472225 + 16548624 = 8335^2 + 4068^2 .

It is a cyclic number.

It is not a de Polignac number, because 86020849 - 2⁵ = 86020817 is a prime.

It is not a weakly prime, because it can be changed into another prime (86021849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43010424 + 43010425.

It is an arithmetic number, because the mean of its divisors is an integer number (43010425).

Almost surely, 2^86020849 is an apocalyptic number.

It is an amenable number.

86020849 is a deficient number, since it is larger than the sum of its proper divisors (1).

86020849 is an equidigital number, since it uses as much as digits as its factorization.

86020849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 86020849 is about 9274.7425301191. The cubic root of 86020849 is about 441.4361629705.

The spelling of 86020849 in words is "eighty-six million, twenty thousand, eight hundred forty-nine".