7916549 has 2 divisors, whose sum is σ = 7916550. Its totient is φ = 7916548.

The previous prime is 7916533. The next prime is 7916551. The reversal of 7916549 is 9456197.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7896100 + 20449 = 2810^2 + 143^2 .

It is a cyclic number.

It is not a de Polignac number, because 7916549 - 2⁴ = 7916533 is a prime.

Together with 7916551, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7916569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3958274 + 3958275.

It is an arithmetic number, because the mean of its divisors is an integer number (3958275).

Almost surely, 2^7916549 is an apocalyptic number.

It is an amenable number.

7916549 is a deficient number, since it is larger than the sum of its proper divisors (1).

7916549 is an equidigital number, since it uses as much as digits as its factorization.

7916549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 41.

The square root of 7916549 is about 2813.6362593626. The cubic root of 7916549 is about 199.3021428089.

The spelling of 7916549 in words is "seven million, nine hundred sixteen thousand, five hundred forty-nine".