13604969 has 8 divisors (see below), whose sum is σ = 16367040. Its totient is φ = 11047536.

The previous prime is 13604957. The next prime is 13604971. The reversal of 13604969 is 96940631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13604969 - 2⁸ = 13604713 is a prime.

It is a super-2 number, since 2×13604969² = 370190362981922, 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 (13604909) 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 in 7 ways as a sum of consecutive naturals, for example, 51014 + ... + 51279.

It is an arithmetic number, because the mean of its divisors is an integer number (2045880).

Almost surely, 2^13604969 is an apocalyptic number.

13604969 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13604969 is a deficient number, since it is larger than the sum of its proper divisors (2762071).

13604969 is a wasteful number, since it uses less digits than its factorization.

13604969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102319.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 13604969 is about 3688.4914260440. The cubic root of 13604969 is about 238.7257055221.

The spelling of 13604969 in words is "thirteen million, six hundred four thousand, nine hundred sixty-nine".