86501 has 2 divisors, whose sum is σ = 86502. Its totient is φ = 86500.

The previous prime is 86491. The next prime is 86509. The reversal of 86501 is 10568.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84100 + 2401 = 290^2 + 49^2 .

It is a cyclic number.

It is not a de Polignac number, because 86501 - 2¹⁴ = 70117 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43250 + 43251.

It is an arithmetic number, because the mean of its divisors is an integer number (43251).

2⁸⁶⁵⁰¹ is an apocalyptic number.

It is an amenable number.

86501 is a deficient number, since it is larger than the sum of its proper divisors (1).

86501 is an equidigital number, since it uses as much as digits as its factorization.

86501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 86501 is about 294.1105234431. The cubic root of 86501 is about 44.2255975340.

The spelling of 86501 in words is "eighty-six thousand, five hundred one".