82667506 has 4 divisors (see below), whose sum is σ = 124001262. Its totient is φ = 41333752.

The previous prime is 82667503. The next prime is 82667527. The reversal of 82667506 is 60576628.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 62552281 + 20115225 = 7909^2 + 4485^2 .

It is not an unprimeable number, because it can be changed into a prime (82667503) 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 as a sum of consecutive naturals, namely, 20666875 + ... + 20666878.

Almost surely, 2^82667506 is an apocalyptic number.

82667506 is a deficient number, since it is larger than the sum of its proper divisors (41333756).

82667506 is a wasteful number, since it uses less digits than its factorization.

82667506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41333755.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 82667506 is about 9092.1672883862. The cubic root of 82667506 is about 435.6238127915.

The spelling of 82667506 in words is "eighty-two million, six hundred sixty-seven thousand, five hundred six".