82006997 has 16 divisors (see below), whose sum is σ = 91137024. Its totient is φ = 73440000.

The previous prime is 82006993. The next prime is 82006999. The reversal of 82006997 is 79960028.

It is not a de Polignac number, because 82006997 - 2² = 82006993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82006993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30872 + ... + 33422.

It is an arithmetic number, because the mean of its divisors is an integer number (5696064).

Almost surely, 2^82006997 is an apocalyptic number.

It is an amenable number.

82006997 is a deficient number, since it is larger than the sum of its proper divisors (9130027).

82006997 is a wasteful number, since it uses less digits than its factorization.

82006997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2660.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 82006997 is about 9055.7714745901. The cubic root of 82006997 is about 434.4605052729.

The spelling of 82006997 in words is "eighty-two million, six thousand, nine hundred ninety-seven".