4727681 has 8 divisors (see below), whose sum is σ = 5416320. Its totient is φ = 4042368.

The previous prime is 4727647. The next prime is 4727687. The reversal of 4727681 is 1867274.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4727681 - 2⁶ = 4727617 is a prime.

It is a super-2 number, since 2×4727681² = 44701935275522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4727687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4625 + ... + 5553.

It is an arithmetic number, because the mean of its divisors is an integer number (677040).

Almost surely, 2^4727681 is an apocalyptic number.

It is an amenable number.

4727681 is a deficient number, since it is larger than the sum of its proper divisors (688639).

4727681 is an equidigital number, since it uses as much as digits as its factorization.

4727681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663.

The product of its digits is 18816, while the sum is 35.

The square root of 4727681 is about 2174.3231130630. The cubic root of 4727681 is about 167.8350729310.

The spelling of 4727681 in words is "four million, seven hundred twenty-seven thousand, six hundred eighty-one".