3766729 has 4 divisors (see below), whose sum is σ = 3788676. Its totient is φ = 3744784.

The previous prime is 3766709. The next prime is 3766739. The reversal of 3766729 is 9276673.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2016400 + 1750329 = 1420^2 + 1323^2 .

It is a cyclic number.

It is not a de Polignac number, because 3766729 - 2⁷ = 3766601 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3766691 and 3766700.

It is not an unprimeable number, because it can be changed into a prime (3766709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10714 + ... + 11059.

It is an arithmetic number, because the mean of its divisors is an integer number (947169).

Almost surely, 2^3766729 is an apocalyptic number.

It is an amenable number.

3766729 is a deficient number, since it is larger than the sum of its proper divisors (21947).

3766729 is a wasteful number, since it uses less digits than its factorization.

3766729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21946.

The product of its digits is 95256, while the sum is 40.

The square root of 3766729 is about 1940.8062757524. The cubic root of 3766729 is about 155.5923087948.

It can be divided in two parts, 37 and 66729, that added together give a palindrome (66766).

The spelling of 3766729 in words is "three million, seven hundred sixty-six thousand, seven hundred twenty-nine".