82823087997 has 48 divisors (see below), whose sum is σ = 132067161408. Its totient is φ = 49691439360.

The previous prime is 82823087993. The next prime is 82823088013. The reversal of 82823087997 is 79978032828.

It is a happy number.

It is not a de Polignac number, because 82823087997 - 2² = 82823087993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82823087993) 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 47 ways as a sum of consecutive naturals, for example, 8375418 + ... + 8385300.

It is an arithmetic number, because the mean of its divisors is an integer number (2751399196).

Almost surely, 2^82823087997 is an apocalyptic number.

It is an amenable number.

82823087997 is a deficient number, since it is larger than the sum of its proper divisors (49244073411).

82823087997 is a wasteful number, since it uses less digits than its factorization.

82823087997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11690 (or 11687 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 63.

The spelling of 82823087997 in words is "eighty-two billion, eight hundred twenty-three million, eighty-seven thousand, nine hundred ninety-seven".