13904473 has 6 divisors (see below), whose sum is σ = 15283562. Its totient is φ = 12640320.

The previous prime is 13904467. The next prime is 13904477. The reversal of 13904473 is 37440931.

It can be written as a sum of positive squares in only one way, i.e., 11108889 + 2795584 = 3333^2 + 1672^2 .

It is a de Polignac number, because none of the positive numbers 2^k-13904473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13904477) 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 5 ways as a sum of consecutive naturals, for example, 57336 + ... + 57577.

Almost surely, 2^13904473 is an apocalyptic number.

It is an amenable number.

13904473 is a deficient number, since it is larger than the sum of its proper divisors (1379089).

13904473 is a wasteful number, since it uses less digits than its factorization.

13904473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114935 (or 114924 counting only the distinct ones).

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

The square root of 13904473 is about 3728.8702042308. The cubic root of 13904473 is about 240.4647994897.

The spelling of 13904473 in words is "thirteen million, nine hundred four thousand, four hundred seventy-three".