3782729 has 8 divisors (see below), whose sum is σ = 4002240. Its totient is φ = 3565296.

The previous prime is 3782699. The next prime is 3782773. The reversal of 3782729 is 9272873.

3782729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3782729 - 2²⁰ = 2734153 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3782692 and 3782701.

It is not an unprimeable number, because it can be changed into a prime (3782629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4619 + ... + 5375.

It is an arithmetic number, because the mean of its divisors is an integer number (500280).

Almost surely, 2^3782729 is an apocalyptic number.

It is an amenable number.

3782729 is a deficient number, since it is larger than the sum of its proper divisors (219511).

3782729 is a wasteful number, since it uses less digits than its factorization.

3782729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039.

The product of its digits is 42336, while the sum is 38.

The square root of 3782729 is about 1944.9239059665. The cubic root of 3782729 is about 155.8123016472.

The spelling of 3782729 in words is "three million, seven hundred eighty-two thousand, seven hundred twenty-nine".