86714521 has 2 divisors, whose sum is σ = 86714522. Its totient is φ = 86714520.

The previous prime is 86714513. The next prime is 86714527. The reversal of 86714521 is 12541768.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68558400 + 18156121 = 8280^2 + 4261^2 .

It is a cyclic number.

It is not a de Polignac number, because 86714521 - 2³ = 86714513 is a prime.

It is not a weakly prime, because it can be changed into another prime (86714527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43357260 + 43357261.

It is an arithmetic number, because the mean of its divisors is an integer number (43357261).

Almost surely, 2^86714521 is an apocalyptic number.

It is an amenable number.

86714521 is a deficient number, since it is larger than the sum of its proper divisors (1).

86714521 is an equidigital number, since it uses as much as digits as its factorization.

86714521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 34.

The square root of 86714521 is about 9312.0631978096. The cubic root of 86714521 is about 442.6195678462.

The spelling of 86714521 in words is "eighty-six million, seven hundred fourteen thousand, five hundred twenty-one".