4609881 has 12 divisors (see below), whose sum is σ = 6722352. Its totient is φ = 3043896.

The previous prime is 4609849. The next prime is 4609897. The reversal of 4609881 is 1889064.

It is a happy number.

It is not a de Polignac number, because 4609881 - 2⁵ = 4609849 is a prime.

It is a super-2 number, since 2×4609881² = 42502005668322, which contains 22 as substring.

4609881 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4609081) 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, 1431 + ... + 3356.

It is an arithmetic number, because the mean of its divisors is an integer number (560196).

Almost surely, 2^4609881 is an apocalyptic number.

It is an amenable number.

4609881 is a deficient number, since it is larger than the sum of its proper divisors (2112471).

4609881 is a wasteful number, since it uses less digits than its factorization.

4609881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4900 (or 4897 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 4609881 is about 2147.0633432668. The cubic root of 4609881 is about 166.4293453430.

The spelling of 4609881 in words is "four million, six hundred nine thousand, eight hundred eighty-one".