86549017 has 2 divisors, whose sum is σ = 86549018. Its totient is φ = 86549016.

The previous prime is 86548939. The next prime is 86549027. The reversal of 86549017 is 71094568.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56310016 + 30239001 = 7504^2 + 5499^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86549017 is a prime.

It is a super-4 number, since 4×86549017⁴ (a number of 33 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (86549027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43274508 + 43274509.

It is an arithmetic number, because the mean of its divisors is an integer number (43274509).

Almost surely, 2^86549017 is an apocalyptic number.

It is an amenable number.

86549017 is a deficient number, since it is larger than the sum of its proper divisors (1).

86549017 is an equidigital number, since it uses as much as digits as its factorization.

86549017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 86549017 is about 9303.1724159020. The cubic root of 86549017 is about 442.3377928031.

It can be divided in two parts, 8654 and 9017, that added together give a palindrome (17671).

The spelling of 86549017 in words is "eighty-six million, five hundred forty-nine thousand, seventeen".