6734521 has 2 divisors, whose sum is σ = 6734522. Its totient is φ = 6734520.

The previous prime is 6734503. The next prime is 6734543. The reversal of 6734521 is 1254376.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5812921 + 921600 = 2411^2 + 960^2 .

It is a cyclic number.

It is not a de Polignac number, because 6734521 - 2¹³ = 6726329 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6734521.

It is not a weakly prime, because it can be changed into another prime (6734921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3367260 + 3367261.

It is an arithmetic number, because the mean of its divisors is an integer number (3367261).

Almost surely, 2^6734521 is an apocalyptic number.

It is an amenable number.

6734521 is a deficient number, since it is larger than the sum of its proper divisors (1).

6734521 is an equidigital number, since it uses as much as digits as its factorization.

6734521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 28.

The square root of 6734521 is about 2595.0955666410. The cubic root of 6734521 is about 188.8435853033.

Adding to 6734521 its reverse (1254376), we get a palindrome (7988897).

The spelling of 6734521 in words is "six million, seven hundred thirty-four thousand, five hundred twenty-one".