6425881 has 16 divisors (see below), whose sum is σ = 8484480. Its totient is φ = 4711680.

The previous prime is 6425869. The next prime is 6425899. The reversal of 6425881 is 1885246.

It is a cyclic number.

It is not a de Polignac number, because 6425881 - 2⁹ = 6425369 is a prime.

It is a super-2 number, since 2×6425881² = 82583893252322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6425381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1146 + ... + 3763.

It is an arithmetic number, because the mean of its divisors is an integer number (530280).

Almost surely, 2^6425881 is an apocalyptic number.

It is an amenable number.

6425881 is a deficient number, since it is larger than the sum of its proper divisors (2058599).

6425881 is a wasteful number, since it uses less digits than its factorization.

6425881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4944.

The product of its digits is 15360, while the sum is 34.

The square root of 6425881 is about 2534.9321489933. The cubic root of 6425881 is about 185.9134854140.

The spelling of 6425881 in words is "six million, four hundred twenty-five thousand, eight hundred eighty-one".