82815466 has 8 divisors (see below), whose sum is σ = 131530500. Its totient is φ = 38971968.

The previous prime is 82815461. The next prime is 82815487. The reversal of 82815466 is 66451828.

It can be written as a sum of positive squares in 2 ways, for example, as 72607441 + 10208025 = 8521^2 + 3195^2 .

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 (82815461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1217841 + ... + 1217908.

Almost surely, 2^82815466 is an apocalyptic number.

82815466 is a deficient number, since it is larger than the sum of its proper divisors (48715034).

82815466 is a wasteful number, since it uses less digits than its factorization.

82815466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2435768.

The product of its digits is 92160, while the sum is 40.

The square root of 82815466 is about 9100.3003247146. The cubic root of 82815466 is about 435.8835540386.

The spelling of 82815466 in words is "eighty-two million, eight hundred fifteen thousand, four hundred sixty-six".