86386849 has 2 divisors, whose sum is σ = 86386850. Its totient is φ = 86386848.

The previous prime is 86386841. The next prime is 86386879. The reversal of 86386849 is 94868368.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69222400 + 17164449 = 8320^2 + 4143^2 .

It is a cyclic number.

It is not a de Polignac number, because 86386849 - 2³ = 86386841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86386796 and 86386805.

It is not a weakly prime, because it can be changed into another prime (86386841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43193424 + 43193425.

It is an arithmetic number, because the mean of its divisors is an integer number (43193425).

Almost surely, 2^86386849 is an apocalyptic number.

It is an amenable number.

86386849 is a deficient number, since it is larger than the sum of its proper divisors (1).

86386849 is an equidigital number, since it uses as much as digits as its factorization.

86386849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1990656, while the sum is 52.

The square root of 86386849 is about 9294.4525928104. The cubic root of 86386849 is about 442.0613487458.

The spelling of 86386849 in words is "eighty-six million, three hundred eighty-six thousand, eight hundred forty-nine".