14813809 has 8 divisors (see below), whose sum is σ = 15408360. Its totient is φ = 14224896.

The previous prime is 14813803. The next prime is 14813819. The reversal of 14813809 is 90831841.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7306209 + 7507600 = 2703^2 + 2740^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14813809 - 2²¹ = 12716657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14813803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4417 + ... + 7009.

It is an arithmetic number, because the mean of its divisors is an integer number (1926045).

Almost surely, 2^14813809 is an apocalyptic number.

It is an amenable number.

14813809 is a deficient number, since it is larger than the sum of its proper divisors (594551).

14813809 is a wasteful number, since it uses less digits than its factorization.

14813809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2819.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 14813809 is about 3848.8711332026. The cubic root of 14813809 is about 245.5965416034.

The spelling of 14813809 in words is "fourteen million, eight hundred thirteen thousand, eight hundred nine".