6631474 has 4 divisors (see below), whose sum is σ = 9947214. Its totient is φ = 3315736.

The previous prime is 6631447. The next prime is 6631477. The reversal of 6631474 is 4741366.

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

It can be written as a sum of positive squares in only one way, i.e., 6477025 + 154449 = 2545^2 + 393^2 .

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 not an unprimeable number, because it can be changed into a prime (6631477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1657867 + ... + 1657870.

Almost surely, 2^6631474 is an apocalyptic number.

6631474 is a deficient number, since it is larger than the sum of its proper divisors (3315740).

6631474 is a wasteful number, since it uses less digits than its factorization.

6631474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3315739.

The product of its digits is 12096, while the sum is 31.

The square root of 6631474 is about 2575.1648490922. The cubic root of 6631474 is about 187.8754456405.

The spelling of 6631474 in words is "six million, six hundred thirty-one thousand, four hundred seventy-four".