6349869 has 12 divisors (see below), whose sum is σ = 9488700. Its totient is φ = 4087104.

The previous prime is 6349859. The next prime is 6349879. The reversal of 6349869 is 9689436.

6349869 is a `hidden beast` number, since 634 + 9 + 8 + 6 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (6349859) and next prime (6349879).

It can be written as a sum of positive squares in 2 ways, for example, as 4284900 + 2064969 = 2070^2 + 1437^2 .

It is not a de Polignac number, because 6349869 - 2⁷ = 6349741 is a prime.

It is a super-2 number, since 2×6349869² = 80641672634322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6349859) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11904 + ... + 12425.

It is an arithmetic number, because the mean of its divisors is an integer number (790725).

Almost surely, 2^6349869 is an apocalyptic number.

It is an amenable number.

6349869 is a deficient number, since it is larger than the sum of its proper divisors (3138831).

6349869 is a wasteful number, since it uses less digits than its factorization.

6349869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24364 (or 24361 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 6349869 is about 2519.8946406546. The cubic root of 6349869 is about 185.1775164859.

The spelling of 6349869 in words is "six million, three hundred forty-nine thousand, eight hundred sixty-nine".