6349509 has 20 divisors (see below), whose sum is σ = 9710976. Its totient is φ = 4132296.

The previous prime is 6349501. The next prime is 6349529. The reversal of 6349509 is 9059436.

It is not a de Polignac number, because 6349509 - 2³ = 6349501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6349501) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2572 + ... + 4394.

Almost surely, 2^6349509 is an apocalyptic number.

It is an amenable number.

6349509 is a deficient number, since it is larger than the sum of its proper divisors (3361467).

6349509 is a wasteful number, since it uses less digits than its factorization.

6349509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1878 (or 1869 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 6349509 is about 2519.8232080842. The cubic root of 6349509 is about 185.1740169299.

The spelling of 6349509 in words is "six million, three hundred forty-nine thousand, five hundred nine".