86828285 has 4 divisors (see below), whose sum is σ = 104193948. Its totient is φ = 69462624.

The previous prime is 86828281. The next prime is 86828293. The reversal of 86828285 is 58282868.

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 21104836 + 65723449 = 4594^2 + 8107^2 .

It is a cyclic number.

It is not a de Polignac number, because 86828285 - 2² = 86828281 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 (86828281) 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, 8682824 + ... + 8682833.

It is an arithmetic number, because the mean of its divisors is an integer number (26048487).

Almost surely, 2^86828285 is an apocalyptic number.

It is an amenable number.

86828285 is a deficient number, since it is larger than the sum of its proper divisors (17365663).

86828285 is a wasteful number, since it uses less digits than its factorization.

86828285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17365662.

The product of its digits is 491520, while the sum is 47.

The square root of 86828285 is about 9318.1696164000. The cubic root of 86828285 is about 442.8130462758.

The spelling of 86828285 in words is "eighty-six million, eight hundred twenty-eight thousand, two hundred eighty-five".