13217474 has 4 divisors (see below), whose sum is σ = 19826214. Its totient is φ = 6608736.

The previous prime is 13217467. The next prime is 13217509. The reversal of 13217474 is 47471231.

13217474 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 13010449 + 207025 = 3607^2 + 455^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3304367 + ... + 3304370.

Almost surely, 2^13217474 is an apocalyptic number.

13217474 is a deficient number, since it is larger than the sum of its proper divisors (6608740).

13217474 is an equidigital number, since it uses as much as digits as its factorization.

13217474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6608739.

The product of its digits is 4704, while the sum is 29.

The square root of 13217474 is about 3635.5844096926. The cubic root of 13217474 is about 236.4373890967.

The spelling of 13217474 in words is "thirteen million, two hundred seventeen thousand, four hundred seventy-four".