82040999 has 2 divisors, whose sum is σ = 82041000. Its totient is φ = 82040998.

The previous prime is 82040989. The next prime is 82041017. The reversal of 82040999 is 99904028.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82040999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82040969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41020499 + 41020500.

It is an arithmetic number, because the mean of its divisors is an integer number (41020500).

Almost surely, 2^82040999 is an apocalyptic number.

82040999 is a deficient number, since it is larger than the sum of its proper divisors (1).

82040999 is an equidigital number, since it uses as much as digits as its factorization.

82040999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 82040999 is about 9057.6486463099. The cubic root of 82040999 is about 434.5205427715.

The spelling of 82040999 in words is "eighty-two million, forty thousand, nine hundred ninety-nine".