7982161 has 8 divisors (see below), whose sum is σ = 8746848. Its totient is φ = 7224000.

The previous prime is 7982153. The next prime is 7982201. The reversal of 7982161 is 1612897.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7982161 - 2³ = 7982153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7982101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1146 + ... + 4156.

It is an arithmetic number, because the mean of its divisors is an integer number (1093356).

Almost surely, 2^7982161 is an apocalyptic number.

7982161 is the 1264-th centered decagonal number.

It is an amenable number.

7982161 is a deficient number, since it is larger than the sum of its proper divisors (764687).

7982161 is a wasteful number, since it uses less digits than its factorization.

7982161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3263.

The product of its digits is 6048, while the sum is 34.

The square root of 7982161 is about 2825.2718453275. The cubic root of 7982161 is about 199.8512310331.

The spelling of 7982161 in words is "seven million, nine hundred eighty-two thousand, one hundred sixty-one".