6471291 has 4 divisors (see below), whose sum is σ = 8628392. Its totient is φ = 4314192.

The previous prime is 6471287. The next prime is 6471313. The reversal of 6471291 is 1921746.

It is a happy number.

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

It is not a de Polignac number, because 6471291 - 2² = 6471287 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6471251) 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, 1078546 + ... + 1078551.

It is an arithmetic number, because the mean of its divisors is an integer number (2157098).

Almost surely, 2^6471291 is an apocalyptic number.

6471291 is a deficient number, since it is larger than the sum of its proper divisors (2157101).

6471291 is a wasteful number, since it uses less digits than its factorization.

6471291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2157100.

The product of its digits is 3024, while the sum is 30.

The square root of 6471291 is about 2543.8732279734. The cubic root of 6471291 is about 186.3503916533.

The spelling of 6471291 in words is "six million, four hundred seventy-one thousand, two hundred ninety-one".