82790266 has 8 divisors (see below), whose sum is σ = 133738164. Its totient is φ = 38210880.

The previous prime is 82790263. The next prime is 82790269. The reversal of 82790266 is 66209728.

It is an interprime number because it is at equal distance from previous prime (82790263) and next prime (82790269).

It can be written as a sum of positive squares in 2 ways, for example, as 73359225 + 9431041 = 8565^2 + 3071^2 .

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 (82790263) 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, 1592095 + ... + 1592146.

Almost surely, 2^82790266 is an apocalyptic number.

82790266 is a deficient number, since it is larger than the sum of its proper divisors (50947898).

82790266 is a wasteful number, since it uses less digits than its factorization.

82790266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3184256.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 82790266 is about 9098.9156496805. The cubic root of 82790266 is about 435.8393377409.

The spelling of 82790266 in words is "eighty-two million, seven hundred ninety thousand, two hundred sixty-six".