82506999 has 8 divisors (see below), whose sum is σ = 110169072. Its totient is φ = 54924800.

The previous prime is 82506971. The next prime is 82507013. The reversal of 82506999 is 99960528.

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

It is a cyclic number.

It is not a de Polignac number, because 82506999 - 2¹⁷ = 82375927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82506499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17514 + ... + 21719.

It is an arithmetic number, because the mean of its divisors is an integer number (13771134).

Almost surely, 2^82506999 is an apocalyptic number.

82506999 is a deficient number, since it is larger than the sum of its proper divisors (27662073).

82506999 is a wasteful number, since it uses less digits than its factorization.

82506999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39937.

The product of its (nonzero) digits is 349920, while the sum is 48.

The square root of 82506999 is about 9083.3363363909. The cubic root of 82506999 is about 435.3416947979.

The spelling of 82506999 in words is "eighty-two million, five hundred six thousand, nine hundred ninety-nine".