86020817 has 2 divisors, whose sum is σ = 86020818. Its totient is φ = 86020816.

The previous prime is 86020813. The next prime is 86020849. The reversal of 86020817 is 71802068.

It is an a-pointer prime, because the next prime (86020849) can be obtained adding 86020817 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72063121 + 13957696 = 8489^2 + 3736^2 .

It is a cyclic number.

It is not a de Polignac number, because 86020817 - 2² = 86020813 is a prime.

It is not a weakly prime, because it can be changed into another prime (86020811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43010408 + 43010409.

It is an arithmetic number, because the mean of its divisors is an integer number (43010409).

Almost surely, 2^86020817 is an apocalyptic number.

It is an amenable number.

86020817 is a deficient number, since it is larger than the sum of its proper divisors (1).

86020817 is an equidigital number, since it uses as much as digits as its factorization.

86020817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 86020817 is about 9274.7408050037. The cubic root of 86020817 is about 441.4361082319.

The spelling of 86020817 in words is "eighty-six million, twenty thousand, eight hundred seventeen".