14707809 has 6 divisors (see below), whose sum is σ = 21244626. Its totient is φ = 9805200.

The previous prime is 14707801. The next prime is 14707813. The reversal of 14707809 is 90870741.

It can be written as a sum of positive squares in only one way, i.e., 10595025 + 4112784 = 3255^2 + 2028^2 .

It is not a de Polignac number, because 14707809 - 2³ = 14707801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (14707801) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 817092 + ... + 817109.

It is an arithmetic number, because the mean of its divisors is an integer number (3540771).

Almost surely, 2^14707809 is an apocalyptic number.

It is an amenable number.

14707809 is a deficient number, since it is larger than the sum of its proper divisors (6536817).

14707809 is a wasteful number, since it uses less digits than its factorization.

14707809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634207 (or 1634204 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 14707809 is about 3835.0761400525. The cubic root of 14707809 is about 245.0093513021.

The spelling of 14707809 in words is "fourteen million, seven hundred seven thousand, eight hundred nine".