8081997 has 32 divisors (see below), whose sum is σ = 13685760. Its totient is φ = 4120320.

The previous prime is 8081971. The next prime is 8082013. The reversal of 8081997 is 7991808.

8081997 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8081997 - 2¹⁴ = 8065613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8081197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13333 + ... + 13925.

It is an arithmetic number, because the mean of its divisors is an integer number (427680).

Almost surely, 2^8081997 is an apocalyptic number.

It is an amenable number.

8081997 is a deficient number, since it is larger than the sum of its proper divisors (5603763).

8081997 is a wasteful number, since it uses less digits than its factorization.

8081997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673.

The product of its (nonzero) digits is 36288, while the sum is 42.

The square root of 8081997 is about 2842.8853300828. The cubic root of 8081997 is about 200.6809869853.

The spelling of 8081997 in words is "eight million, eighty-one thousand, nine hundred ninety-seven".