86646485 has 4 divisors (see below), whose sum is σ = 103975788. Its totient is φ = 69317184.

The previous prime is 86646463. The next prime is 86646487. The reversal of 86646485 is 58464668.

It is a happy number.

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 67207204 + 19439281 = 8198^2 + 4409^2 .

It is a cyclic number.

It is not a de Polignac number, because 86646485 - 2⁶ = 86646421 is a prime.

It is a super-2 number, since 2×86646485² = 15015226725710450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86646487) 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, 8664644 + ... + 8664653.

It is an arithmetic number, because the mean of its divisors is an integer number (25993947).

Almost surely, 2^86646485 is an apocalyptic number.

It is an amenable number.

86646485 is a deficient number, since it is larger than the sum of its proper divisors (17329303).

86646485 is a wasteful number, since it uses less digits than its factorization.

86646485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17329302.

The product of its digits is 1105920, while the sum is 47.

The square root of 86646485 is about 9308.4093700267. The cubic root of 86646485 is about 442.5037781498.

The spelling of 86646485 in words is "eighty-six million, six hundred forty-six thousand, four hundred eighty-five".