6349561 has 2 divisors, whose sum is σ = 6349562. Its totient is φ = 6349560.

The previous prime is 6349549. The next prime is 6349589. The reversal of 6349561 is 1659436.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6325225 + 24336 = 2515^2 + 156^2 .

It is a cyclic number.

It is not a de Polignac number, because 6349561 - 2⁵ = 6349529 is a prime.

It is not a weakly prime, because it can be changed into another prime (6349501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3174780 + 3174781.

It is an arithmetic number, because the mean of its divisors is an integer number (3174781).

Almost surely, 2^6349561 is an apocalyptic number.

It is an amenable number.

6349561 is a deficient number, since it is larger than the sum of its proper divisors (1).

6349561 is an equidigital number, since it uses as much as digits as its factorization.

6349561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 34.

The square root of 6349561 is about 2519.8335262473. The cubic root of 6349561 is about 185.1745224295.

The spelling of 6349561 in words is "six million, three hundred forty-nine thousand, five hundred sixty-one".