7982621 has 4 divisors (see below), whose sum is σ = 8152512. Its totient is φ = 7812732.

The previous prime is 7982609. The next prime is 7982629. The reversal of 7982621 is 1262897.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 7982621 - 2¹⁴ = 7966237 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 (7982629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84875 + ... + 84968.

It is an arithmetic number, because the mean of its divisors is an integer number (2038128).

Almost surely, 2^7982621 is an apocalyptic number.

It is an amenable number.

7982621 is a deficient number, since it is larger than the sum of its proper divisors (169891).

7982621 is a wasteful number, since it uses less digits than its factorization.

7982621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169890.

The product of its digits is 12096, while the sum is 35.

The square root of 7982621 is about 2825.3532522501. The cubic root of 7982621 is about 199.8550700018.

The spelling of 7982621 in words is "seven million, nine hundred eighty-two thousand, six hundred twenty-one".