4731681 has 8 divisors (see below), whose sum is σ = 6428160. Its totient is φ = 3094832.

The previous prime is 4731679. The next prime is 4731689. The reversal of 4731681 is 1861374.

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 4731681 - 2¹ = 4731679 is a prime.

It is a super-2 number, since 2×4731681² = 44777610171522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4731689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14721 + ... + 15038.

It is an arithmetic number, because the mean of its divisors is an integer number (803520).

Almost surely, 2^4731681 is an apocalyptic number.

It is an amenable number.

4731681 is a deficient number, since it is larger than the sum of its proper divisors (1696479).

4731681 is a wasteful number, since it uses less digits than its factorization.

4731681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29815.

The product of its digits is 4032, while the sum is 30.

The square root of 4731681 is about 2175.2427450747. The cubic root of 4731681 is about 167.8823935973.

The spelling of 4731681 in words is "four million, seven hundred thirty-one thousand, six hundred eighty-one".