14897809 has 4 divisors (see below), whose sum is σ = 14976000. Its totient is φ = 14819620.

The previous prime is 14897761. The next prime is 14897819. The reversal of 14897809 is 90879841.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 14897809 - 2⁷ = 14897681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14897819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38809 + ... + 39190.

It is an arithmetic number, because the mean of its divisors is an integer number (3744000).

Almost surely, 2^14897809 is an apocalyptic number.

It is an amenable number.

14897809 is a deficient number, since it is larger than the sum of its proper divisors (78191).

14897809 is an equidigital number, since it uses as much as digits as its factorization.

14897809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78190.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 14897809 is about 3859.7679982092. The cubic root of 14897809 is about 246.0598759224.

The spelling of 14897809 in words is "fourteen million, eight hundred ninety-seven thousand, eight hundred nine".