9931473 has 6 divisors (see below), whose sum is σ = 14345474. Its totient is φ = 6620976.

The previous prime is 9931463. The next prime is 9931489. The reversal of 9931473 is 3741399.

9931473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9072144 + 859329 = 3012^2 + 927^2 .

It is not a de Polignac number, because 9931473 - 2⁹ = 9930961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9931463) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 551740 + ... + 551757.

Almost surely, 2^9931473 is an apocalyptic number.

It is an amenable number.

9931473 is a deficient number, since it is larger than the sum of its proper divisors (4414001).

9931473 is a wasteful number, since it uses less digits than its factorization.

9931473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103503 (or 1103500 counting only the distinct ones).

The product of its digits is 20412, while the sum is 36.

The square root of 9931473 is about 3151.4239638614. The cubic root of 9931473 is about 214.9502174265.

It can be divided in two parts, 9931 and 473, that added together give a square (10404 = 102²).

The spelling of 9931473 in words is "nine million, nine hundred thirty-one thousand, four hundred seventy-three".