86828663 has 4 divisors (see below), whose sum is σ = 87927840. Its totient is φ = 85729488.

The previous prime is 86828659. The next prime is 86828683. The reversal of 86828663 is 36682868.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 86828663 - 2² = 86828659 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 (86828683) 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, 549470 + ... + 549627.

It is an arithmetic number, because the mean of its divisors is an integer number (21981960).

Almost surely, 2^86828663 is an apocalyptic number.

86828663 is a deficient number, since it is larger than the sum of its proper divisors (1099177).

86828663 is a wasteful number, since it uses less digits than its factorization.

86828663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099176.

The product of its digits is 663552, while the sum is 47.

The square root of 86828663 is about 9318.1898993313. The cubic root of 86828663 is about 442.8136888586.

The spelling of 86828663 in words is "eighty-six million, eight hundred twenty-eight thousand, six hundred sixty-three".