4861681 has 4 divisors (see below), whose sum is σ = 5303664. Its totient is φ = 4419700.

The previous prime is 4861679. The next prime is 4861691. The reversal of 4861681 is 1861684.

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 4861681 - 2¹ = 4861679 is a prime.

It is a super-2 number, since 2×4861681² = 47271884291522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4861601) 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, 220975 + ... + 220996.

It is an arithmetic number, because the mean of its divisors is an integer number (1325916).

Almost surely, 2^4861681 is an apocalyptic number.

It is an amenable number.

4861681 is a deficient number, since it is larger than the sum of its proper divisors (441983).

4861681 is a wasteful number, since it uses less digits than its factorization.

4861681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441982.

The product of its digits is 9216, while the sum is 34.

The square root of 4861681 is about 2204.9219940851. The cubic root of 4861681 is about 169.4060123494.

The spelling of 4861681 in words is "four million, eight hundred sixty-one thousand, six hundred eighty-one".