14782409 has 2 divisors, whose sum is σ = 14782410. Its totient is φ = 14782408.

The previous prime is 14782387. The next prime is 14782429. The reversal of 14782409 is 90428741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14137600 + 644809 = 3760^2 + 803^2 .

It is a cyclic number.

It is not a de Polignac number, because 14782409 - 2²⁰ = 13733833 is a prime.

It is not a weakly prime, because it can be changed into another prime (14782429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7391204 + 7391205.

It is an arithmetic number, because the mean of its divisors is an integer number (7391205).

Almost surely, 2^14782409 is an apocalyptic number.

It is an amenable number.

14782409 is a deficient number, since it is larger than the sum of its proper divisors (1).

14782409 is an equidigital number, since it uses as much as digits as its factorization.

14782409 is an odious number, because the sum of its binary digits is odd.

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

The square root of 14782409 is about 3844.7898512142. The cubic root of 14782409 is about 245.4228931168.

The spelling of 14782409 in words is "fourteen million, seven hundred eighty-two thousand, four hundred nine".