13473409 has 4 divisors (see below), whose sum is σ = 13570480. Its totient is φ = 13376340.

The previous prime is 13473373. The next prime is 13473433. The reversal of 13473409 is 90437431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13473409 - 2¹³ = 13465217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13473479) 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 3 ways as a sum of consecutive naturals, for example, 48327 + ... + 48604.

It is an arithmetic number, because the mean of its divisors is an integer number (3392620).

Almost surely, 2^13473409 is an apocalyptic number.

It is an amenable number.

13473409 is a deficient number, since it is larger than the sum of its proper divisors (97071).

13473409 is an equidigital number, since it uses as much as digits as its factorization.

13473409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97070.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 13473409 is about 3670.6142537728. The cubic root of 13473409 is about 237.9537195513.

The spelling of 13473409 in words is "thirteen million, four hundred seventy-three thousand, four hundred nine".