4881681 has 32 divisors (see below), whose sum is σ = 8632320. Its totient is φ = 2665872.

The previous prime is 4881677. The next prime is 4881683. The reversal of 4881681 is 1861884.

4881681 = T₁₆₀ + T₁₆₁ + ... + T₃₂₁.

It is not a de Polignac number, because 4881681 - 2² = 4881677 is a prime.

It is a super-2 number, since 2×4881681² = 47661618771522, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4881683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3786 + ... + 4908.

It is an arithmetic number, because the mean of its divisors is an integer number (269760).

Almost surely, 2^4881681 is an apocalyptic number.

It is an amenable number.

4881681 is a deficient number, since it is larger than the sum of its proper divisors (3750639).

4881681 is a wasteful number, since it uses less digits than its factorization.

4881681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162 (or 1156 counting only the distinct ones).

The product of its digits is 12288, while the sum is 36.

The square root of 4881681 is about 2209.4526471504. The cubic root of 4881681 is about 169.6379955404.

The spelling of 4881681 in words is "four million, eight hundred eighty-one thousand, six hundred eighty-one".