3683729 has 8 divisors (see below), whose sum is σ = 4279488. Its totient is φ = 3105360.

The previous prime is 3683723. The next prime is 3683731. The reversal of 3683729 is 9273863.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3683729 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3683692 and 3683701.

It is not an unprimeable number, because it can be changed into a prime (3683723) 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, 3887 + ... + 4740.

It is an arithmetic number, because the mean of its divisors is an integer number (534936).

Almost surely, 2^3683729 is an apocalyptic number.

It is an amenable number.

3683729 is a deficient number, since it is larger than the sum of its proper divisors (595759).

3683729 is an equidigital number, since it uses as much as digits as its factorization.

3683729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8695.

The product of its digits is 54432, while the sum is 38.

The square root of 3683729 is about 1919.3043010424. The cubic root of 3683729 is about 154.4409831742.

The spelling of 3683729 in words is "three million, six hundred eighty-three thousand, seven hundred twenty-nine".