6631427 has 8 divisors (see below), whose sum is σ = 7468032. Its totient is φ = 5833800.

The previous prime is 6631421. The next prime is 6631447. The reversal of 6631427 is 7241366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6631427 - 2¹⁴ = 6615043 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 6631427.

It is not an unprimeable number, because it can be changed into a prime (6631421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9383 + ... + 10064.

It is an arithmetic number, because the mean of its divisors is an integer number (933504).

Almost surely, 2^6631427 is an apocalyptic number.

6631427 is a deficient number, since it is larger than the sum of its proper divisors (836605).

6631427 is a wasteful number, since it uses less digits than its factorization.

6631427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19489.

The product of its digits is 6048, while the sum is 29.

The square root of 6631427 is about 2575.1557234466. The cubic root of 6631427 is about 187.8750017891.

The spelling of 6631427 in words is "six million, six hundred thirty-one thousand, four hundred twenty-seven".