82766386 has 8 divisors (see below), whose sum is σ = 126185004. Its totient is φ = 40704720.

The previous prime is 82766339. The next prime is 82766393. The reversal of 82766386 is 68366728.

It can be written as a sum of positive squares in 2 ways, for example, as 59059225 + 23707161 = 7685^2 + 4869^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339085 + ... + 339328.

Almost surely, 2^82766386 is an apocalyptic number.

82766386 is a deficient number, since it is larger than the sum of its proper divisors (43418618).

82766386 is a wasteful number, since it uses less digits than its factorization.

82766386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678476.

The product of its digits is 580608, while the sum is 46.

The square root of 82766386 is about 9097.6033107627. The cubic root of 82766386 is about 435.7974292544.

The spelling of 82766386 in words is "eighty-two million, seven hundred sixty-six thousand, three hundred eighty-six".