6471481 has 4 divisors (see below), whose sum is σ = 6629364. Its totient is φ = 6313600.

The previous prime is 6471473. The next prime is 6471499. The reversal of 6471481 is 1841746.

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

It can be written as a sum of positive squares in 2 ways, for example, as 176400 + 6295081 = 420^2 + 2509^2 .

It is a cyclic number.

It is not a de Polignac number, because 6471481 - 2³ = 6471473 is a prime.

It is a super-2 number, since 2×6471481² = 83760132666722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6471401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78880 + ... + 78961.

It is an arithmetic number, because the mean of its divisors is an integer number (1657341).

Almost surely, 2^6471481 is an apocalyptic number.

It is an amenable number.

6471481 is a deficient number, since it is larger than the sum of its proper divisors (157883).

6471481 is a wasteful number, since it uses less digits than its factorization.

6471481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157882.

The product of its digits is 5376, while the sum is 31.

The square root of 6471481 is about 2543.9105723276. The cubic root of 6471481 is about 186.3522154124.

The spelling of 6471481 in words is "six million, four hundred seventy-one thousand, four hundred eighty-one".