13473921 has 16 divisors (see below), whose sum is σ = 18532800. Its totient is φ = 8702400.

The previous prime is 13473919. The next prime is 13473949. The reversal of 13473921 is 12937431.

13473921 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13473921 - 2¹ = 13473919 is a prime.

It is a super-2 number, since 2×13473921² = 363093094228482, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13473991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18871 + ... + 19571.

It is an arithmetic number, because the mean of its divisors is an integer number (1158300).

Almost surely, 2^13473921 is an apocalyptic number.

It is an amenable number.

13473921 is a deficient number, since it is larger than the sum of its proper divisors (5058879).

13473921 is a wasteful number, since it uses less digits than its factorization.

13473921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896.

The product of its digits is 4536, while the sum is 30.

The square root of 13473921 is about 3670.6839962056. The cubic root of 13473921 is about 237.9567336552.

The spelling of 13473921 in words is "thirteen million, four hundred seventy-three thousand, nine hundred twenty-one".