86660485 has 4 divisors (see below), whose sum is σ = 103992588. Its totient is φ = 69328384.

The previous prime is 86660471. The next prime is 86660489. The reversal of 86660485 is 58406668.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21986721 + 64673764 = 4689^2 + 8042^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86660485 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86660489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8666044 + ... + 8666053.

It is an arithmetic number, because the mean of its divisors is an integer number (25998147).

Almost surely, 2^86660485 is an apocalyptic number.

It is an amenable number.

86660485 is a deficient number, since it is larger than the sum of its proper divisors (17332103).

86660485 is a wasteful number, since it uses less digits than its factorization.

86660485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17332102.

The product of its (nonzero) digits is 276480, while the sum is 43.

The square root of 86660485 is about 9309.1613478336. The cubic root of 86660485 is about 442.5276095427.

The spelling of 86660485 in words is "eighty-six million, six hundred sixty thousand, four hundred eighty-five".