82782858 has 8 divisors (see below), whose sum is σ = 165565728. Its totient is φ = 27594284.

The previous prime is 82782853. The next prime is 82782859. The reversal of 82782858 is 85828728.

It is a happy number.

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

82782858 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82782853) 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, 6898566 + ... + 6898577.

It is an arithmetic number, because the mean of its divisors is an integer number (20695716).

Almost surely, 2^82782858 is an apocalyptic number.

82782858 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82782858 is a wasteful number, since it uses less digits than its factorization.

82782858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13797148.

The product of its digits is 573440, while the sum is 48.

The square root of 82782858 is about 9098.5085590991. The cubic root of 82782858 is about 435.8263378466.

The spelling of 82782858 in words is "eighty-two million, seven hundred eighty-two thousand, eight hundred fifty-eight".