86859841 has 2 divisors, whose sum is σ = 86859842. Its totient is φ = 86859840.

The previous prime is 86859833. The next prime is 86859847. The reversal of 86859841 is 14895868.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84713616 + 2146225 = 9204^2 + 1465^2 .

It is a cyclic number.

It is not a de Polignac number, because 86859841 - 2³ = 86859833 is a prime.

It is not a weakly prime, because it can be changed into another prime (86859847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43429920 + 43429921.

It is an arithmetic number, because the mean of its divisors is an integer number (43429921).

Almost surely, 2^86859841 is an apocalyptic number.

It is an amenable number.

86859841 is a deficient number, since it is larger than the sum of its proper divisors (1).

86859841 is an equidigital number, since it uses as much as digits as its factorization.

86859841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 552960, while the sum is 49.

The square root of 86859841 is about 9319.8627135811. The cubic root of 86859841 is about 442.8666836208.

The spelling of 86859841 in words is "eighty-six million, eight hundred fifty-nine thousand, eight hundred forty-one".