7321982 has 8 divisors (see below), whose sum is σ = 11032896. Its totient is φ = 3644352.

The previous prime is 7321969. The next prime is 7321987. The reversal of 7321982 is 2891237.

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

It is a super-2 number, since 2×7321982² = 107222840816648, which contains 22 as substring.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7321987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7763 + ... + 8654.

It is an arithmetic number, because the mean of its divisors is an integer number (1379112).

Almost surely, 2^7321982 is an apocalyptic number.

7321982 is a deficient number, since it is larger than the sum of its proper divisors (3710914).

7321982 is a wasteful number, since it uses less digits than its factorization.

7321982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16642.

The product of its digits is 6048, while the sum is 32.

The square root of 7321982 is about 2705.9161110426. The cubic root of 7321982 is about 194.1822604294.

The spelling of 7321982 in words is "seven million, three hundred twenty-one thousand, nine hundred eighty-two".