6427881 has 12 divisors (see below), whose sum is σ = 9584640. Its totient is φ = 4146840.

The previous prime is 6427831. The next prime is 6427891. The reversal of 6427881 is 1887246.

6427881 is a `hidden beast` number, since 642 + 7 + 8 + 8 + 1 = 666.

It is not a de Polignac number, because 6427881 - 2¹¹ = 6425833 is a prime.

It is a super-2 number, since 2×6427881² = 82635308300322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6427831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11241 + ... + 11798.

It is an arithmetic number, because the mean of its divisors is an integer number (798720).

Almost surely, 2^6427881 is an apocalyptic number.

It is an amenable number.

6427881 is a deficient number, since it is larger than the sum of its proper divisors (3156759).

6427881 is a wasteful number, since it uses less digits than its factorization.

6427881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23076 (or 23073 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 6427881 is about 2535.3266061792. The cubic root of 6427881 is about 185.9327714025.

The spelling of 6427881 in words is "six million, four hundred twenty-seven thousand, eight hundred eighty-one".