4685681 has 32 divisors (see below), whose sum is σ = 6537216. Its totient is φ = 3240000.

The previous prime is 4685669. The next prime is 4685687. The reversal of 4685681 is 1865864.

4685681 is nontrivially palindromic in base 2.

It is a cyclic number.

It is not a de Polignac number, because 4685681 - 2²² = 491377 is a prime.

It is a super-2 number, since 2×4685681² = 43911212867522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4685687) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30956 + ... + 31106.

It is an arithmetic number, because the mean of its divisors is an integer number (204288).

Almost surely, 2^4685681 is an apocalyptic number.

It is an amenable number.

4685681 is a deficient number, since it is larger than the sum of its proper divisors (1851535).

4685681 is a wasteful number, since it uses less digits than its factorization.

4685681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213.

The product of its digits is 46080, while the sum is 38.

The square root of 4685681 is about 2164.6433886440. The cubic root of 4685681 is about 167.3365867458.

The spelling of 4685681 in words is "four million, six hundred eighty-five thousand, six hundred eighty-one".