82868090 has 8 divisors (see below), whose sum is σ = 149162580. Its totient is φ = 33147232.

The previous prime is 82868089. The next prime is 82868099. The reversal of 82868090 is 9086828.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 82864609 + 3481 = 9103^2 + 59^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (82868099) 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, 4143395 + ... + 4143414.

Almost surely, 2^82868090 is an apocalyptic number.

82868090 is a deficient number, since it is larger than the sum of its proper divisors (66294490).

82868090 is a wasteful number, since it uses less digits than its factorization.

82868090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8286816.

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 82868090 is about 9103.1911986951. The cubic root of 82868090 is about 435.9758599827.

The spelling of 82868090 in words is "eighty-two million, eight hundred sixty-eight thousand, ninety".