13675409 has 16 divisors (see below), whose sum is σ = 15704064. Its totient is φ = 11787600.

The previous prime is 13675399. The next prime is 13675411. The reversal of 13675409 is 90457631.

It is not a de Polignac number, because 13675409 - 2¹⁶ = 13609873 is a prime.

It is a super-2 number, since 2×13675409² = 374033622634562, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13675489) 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 15 ways as a sum of consecutive naturals, for example, 48182 + ... + 48464.

It is an arithmetic number, because the mean of its divisors is an integer number (981504).

Almost surely, 2^13675409 is an apocalyptic number.

It is an amenable number.

13675409 is a deficient number, since it is larger than the sum of its proper divisors (2028655).

13675409 is a wasteful number, since it uses less digits than its factorization.

13675409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 13675409 is about 3698.0277175814. The cubic root of 13675409 is about 239.1369988870.

It can be divided in two parts, 1367 and 5409, that added together give a palindrome (6776).

The spelling of 13675409 in words is "thirteen million, six hundred seventy-five thousand, four hundred nine".