14284709 has 4 divisors (see below), whose sum is σ = 15125004. Its totient is φ = 13444416.

The previous prime is 14284693. The next prime is 14284723. The reversal of 14284709 is 90748241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6360484 + 7924225 = 2522^2 + 2815^2 .

It is not a de Polignac number, because 14284709 - 2⁴ = 14284693 is a prime.

It is a super-2 number, since 2×14284709² = 408105822429362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14284759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420122 + ... + 420155.

It is an arithmetic number, because the mean of its divisors is an integer number (3781251).

Almost surely, 2^14284709 is an apocalyptic number.

It is an amenable number.

14284709 is a deficient number, since it is larger than the sum of its proper divisors (840295).

14284709 is an equidigital number, since it uses as much as digits as its factorization.

14284709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840294.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 14284709 is about 3779.5117409528. The cubic root of 14284709 is about 242.6370585966.

The spelling of 14284709 in words is "fourteen million, two hundred eighty-four thousand, seven hundred nine".