6417881 has 4 divisors (see below), whose sum is σ = 6499200. Its totient is φ = 6336564.

The previous prime is 6417869. The next prime is 6417889. The reversal of 6417881 is 1887146.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6417881 - 2¹⁴ = 6401497 is a prime.

It is a super-2 number, since 2×6417881² = 82378393060322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6417889) 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, 40541 + ... + 40698.

It is an arithmetic number, because the mean of its divisors is an integer number (1624800).

Almost surely, 2^6417881 is an apocalyptic number.

It is an amenable number.

6417881 is a deficient number, since it is larger than the sum of its proper divisors (81319).

6417881 is an equidigital number, since it uses as much as digits as its factorization.

6417881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81318.

The product of its digits is 10752, while the sum is 35.

The square root of 6417881 is about 2533.3537060584. The cubic root of 6417881 is about 185.8363014176.

The spelling of 6417881 in words is "six million, four hundred seventeen thousand, eight hundred eighty-one".