6426349 has 2 divisors, whose sum is σ = 6426350. Its totient is φ = 6426348.

The previous prime is 6426317. The next prime is 6426359. The reversal of 6426349 is 9436246.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6325225 + 101124 = 2515^2 + 318^2 .

It is a cyclic number.

It is not a de Polignac number, because 6426349 - 2⁵ = 6426317 is a prime.

It is a super-2 number, since 2×6426349² = 82595922939602, which contains 22 as substring.

6426349 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6426359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3213174 + 3213175.

It is an arithmetic number, because the mean of its divisors is an integer number (3213175).

Almost surely, 2^6426349 is an apocalyptic number.

It is an amenable number.

6426349 is a deficient number, since it is larger than the sum of its proper divisors (1).

6426349 is an equidigital number, since it uses as much as digits as its factorization.

6426349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 34.

The square root of 6426349 is about 2535.0244574757. The cubic root of 6426349 is about 185.9179986939.

The spelling of 6426349 in words is "six million, four hundred twenty-six thousand, three hundred forty-nine".