82669999 has 2 divisors, whose sum is σ = 82670000. Its totient is φ = 82669998.

The previous prime is 82669987. The next prime is 82670017. The reversal of 82669999 is 99996628.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82669999 - 2⁷ = 82669871 is a prime.

It is a Chen prime.

82669999 is a modest number, since divided by 9999 gives 8266 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82669949) 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, 41334999 + 41335000.

It is an arithmetic number, because the mean of its divisors is an integer number (41335000).

Almost surely, 2^82669999 is an apocalyptic number.

82669999 is a deficient number, since it is larger than the sum of its proper divisors (1).

82669999 is an equidigital number, since it uses as much as digits as its factorization.

82669999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3779136, while the sum is 58.

The square root of 82669999 is about 9092.3043833783. The cubic root of 82669999 is about 435.6281917763.

The spelling of 82669999 in words is "eighty-two million, six hundred sixty-nine thousand, nine hundred ninety-nine".