6514649 has 2 divisors, whose sum is σ = 6514650. Its totient is φ = 6514648.

The previous prime is 6514639. The next prime is 6514657. The reversal of 6514649 is 9464156.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4243600 + 2271049 = 2060^2 + 1507^2 .

It is a cyclic number.

It is not a de Polignac number, because 6514649 - 2⁴ = 6514633 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6514609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3257324 + 3257325.

It is an arithmetic number, because the mean of its divisors is an integer number (3257325).

Almost surely, 2^6514649 is an apocalyptic number.

It is an amenable number.

6514649 is a deficient number, since it is larger than the sum of its proper divisors (1).

6514649 is an equidigital number, since it uses as much as digits as its factorization.

6514649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 35.

The square root of 6514649 is about 2552.3810452203. The cubic root of 6514649 is about 186.7656515122.

The spelling of 6514649 in words is "six million, five hundred fourteen thousand, six hundred forty-nine".