14869809 has 12 divisors (see below), whose sum is σ = 21701316. Its totient is φ = 9810432.

The previous prime is 14869793. The next prime is 14869817. The reversal of 14869809 is 90896841.

14869809 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4928400 + 9941409 = 2220^2 + 3153^2 .

It is not a de Polignac number, because 14869809 - 2⁴ = 14869793 is a prime.

It is a super-2 number, since 2×14869809² = 442222439392962, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14869859) 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, 7644 + ... + 9389.

It is an arithmetic number, because the mean of its divisors is an integer number (1808443).

Almost surely, 2^14869809 is an apocalyptic number.

It is an amenable number.

14869809 is a deficient number, since it is larger than the sum of its proper divisors (6831507).

14869809 is a wasteful number, since it uses less digits than its factorization.

14869809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17136 (or 17133 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 14869809 is about 3856.1391313074. The cubic root of 14869809 is about 245.9056251116.

The spelling of 14869809 in words is "fourteen million, eight hundred sixty-nine thousand, eight hundred nine".