6736549 has 2 divisors, whose sum is σ = 6736550. Its totient is φ = 6736548.

The previous prime is 6736547. The next prime is 6736603. The reversal of 6736549 is 9456376.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4796100 + 1940449 = 2190^2 + 1393^2 .

It is a cyclic number.

It is not a de Polignac number, because 6736549 - 2¹ = 6736547 is a prime.

Together with 6736547, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6736547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3368274 + 3368275.

It is an arithmetic number, because the mean of its divisors is an integer number (3368275).

Almost surely, 2^6736549 is an apocalyptic number.

It is an amenable number.

6736549 is a deficient number, since it is larger than the sum of its proper divisors (1).

6736549 is an equidigital number, since it uses as much as digits as its factorization.

6736549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 40.

The square root of 6736549 is about 2595.4862742846. The cubic root of 6736549 is about 188.8625392054.

The spelling of 6736549 in words is "six million, seven hundred thirty-six thousand, five hundred forty-nine".