7982661 has 4 divisors (see below), whose sum is σ = 10643552. Its totient is φ = 5321772.

The previous prime is 7982651. The next prime is 7982671. The reversal of 7982661 is 1662897.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1662897 = 3 ⋅554299.

It is an interprime number because it is at equal distance from previous prime (7982651) and next prime (7982671).

It is not a de Polignac number, because 7982661 - 2⁵ = 7982629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7982651) 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 3 ways as a sum of consecutive naturals, for example, 1330441 + ... + 1330446.

It is an arithmetic number, because the mean of its divisors is an integer number (2660888).

Almost surely, 2^7982661 is an apocalyptic number.

It is an amenable number.

7982661 is a deficient number, since it is larger than the sum of its proper divisors (2660891).

7982661 is a wasteful number, since it uses less digits than its factorization.

7982661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2660890.

The product of its digits is 36288, while the sum is 39.

The square root of 7982661 is about 2825.3603310020. The cubic root of 7982661 is about 199.8554038182.

The spelling of 7982661 in words is "seven million, nine hundred eighty-two thousand, six hundred sixty-one".