5671851 has 4 divisors (see below), whose sum is σ = 7562472. Its totient is φ = 3781232.

The previous prime is 5671837. The next prime is 5671859. The reversal of 5671851 is 1581765.

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

It is a cyclic number.

It is not a de Polignac number, because 5671851 - 2¹⁰ = 5670827 is a prime.

It is a D-number.

5671851 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5671859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 945306 + ... + 945311.

It is an arithmetic number, because the mean of its divisors is an integer number (1890618).

Almost surely, 2^5671851 is an apocalyptic number.

5671851 is a deficient number, since it is larger than the sum of its proper divisors (1890621).

5671851 is a wasteful number, since it uses less digits than its factorization.

5671851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1890620.

The product of its digits is 8400, while the sum is 33.

The square root of 5671851 is about 2381.5648217086. The cubic root of 5671851 is about 178.3370607037.

The spelling of 5671851 in words is "five million, six hundred seventy-one thousand, eight hundred fifty-one".