6631873 has 4 divisors (see below), whose sum is σ = 6793668. Its totient is φ = 6470080.

The previous prime is 6631871. The next prime is 6631883. The reversal of 6631873 is 3781366.

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 565504 + 6066369 = 752^2 + 2463^2 .

It is a cyclic number.

It is not a de Polignac number, because 6631873 - 2¹ = 6631871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6631871) 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, 80836 + ... + 80917.

It is an arithmetic number, because the mean of its divisors is an integer number (1698417).

Almost surely, 2^6631873 is an apocalyptic number.

It is an amenable number.

6631873 is a deficient number, since it is larger than the sum of its proper divisors (161795).

6631873 is a wasteful number, since it uses less digits than its factorization.

6631873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161794.

The product of its digits is 18144, while the sum is 34.

The square root of 6631873 is about 2575.2423186955. The cubic root of 6631873 is about 187.8792135710.

The spelling of 6631873 in words is "six million, six hundred thirty-one thousand, eight hundred seventy-three".