7982109 has 12 divisors (see below), whose sum is σ = 12136800. Its totient is φ = 5041224.

The previous prime is 7982101. The next prime is 7982111. The reversal of 7982109 is 9012897.

It is a happy number.

It is not a de Polignac number, because 7982109 - 2³ = 7982101 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7982101) 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 11 ways as a sum of consecutive naturals, for example, 23169 + ... + 23510.

It is an arithmetic number, because the mean of its divisors is an integer number (1011400).

Almost surely, 2^7982109 is an apocalyptic number.

It is an amenable number.

7982109 is a deficient number, since it is larger than the sum of its proper divisors (4154691).

7982109 is a wasteful number, since it uses less digits than its factorization.

7982109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46704 (or 46701 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 7982109 is about 2825.2626426582. The cubic root of 7982109 is about 199.8507970534.

The spelling of 7982109 in words is "seven million, nine hundred eighty-two thousand, one hundred nine".