6781473 has 6 divisors (see below), whose sum is σ = 9795474. Its totient is φ = 4520976.

The previous prime is 6781457. The next prime is 6781493. The reversal of 6781473 is 3741876.

6781473 is digitally balanced in base 3, 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., 5419584 + 1361889 = 2328^2 + 1167^2 .

It is not a de Polignac number, because 6781473 - 2⁴ = 6781457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6781433) 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, 376740 + ... + 376757.

It is an arithmetic number, because the mean of its divisors is an integer number (1632579).

Almost surely, 2^6781473 is an apocalyptic number.

It is an amenable number.

6781473 is a deficient number, since it is larger than the sum of its proper divisors (3014001).

6781473 is a wasteful number, since it uses less digits than its factorization.

6781473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753503 (or 753500 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 6781473 is about 2604.1261490181. The cubic root of 6781473 is about 189.2814317362.

The spelling of 6781473 in words is "six million, seven hundred eighty-one thousand, four hundred seventy-three".