7982543 has 2 divisors, whose sum is σ = 7982544. Its totient is φ = 7982542.

The previous prime is 7982539. The next prime is 7982561. The reversal of 7982543 is 3452897.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7982543 - 2² = 7982539 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 7982497 and 7982506.

It is a congruent number.

It is a weakly prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3991271 + 3991272.

It is an arithmetic number, because the mean of its divisors is an integer number (3991272).

Almost surely, 2^7982543 is an apocalyptic number.

7982543 is a deficient number, since it is larger than the sum of its proper divisors (1).

7982543 is an equidigital number, since it uses as much as digits as its factorization.

7982543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 38.

The square root of 7982543 is about 2825.3394486327. The cubic root of 7982543 is about 199.8544190567.

The spelling of 7982543 in words is "seven million, nine hundred eighty-two thousand, five hundred forty-three".