3682729 has 2 divisors, whose sum is σ = 3682730. Its totient is φ = 3682728.

The previous prime is 3682709. The next prime is 3682733. The reversal of 3682729 is 9272863.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2576025 + 1106704 = 1605^2 + 1052^2 .

It is an emirp because it is prime and its reverse (9272863) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3682729 - 2¹¹ = 3680681 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (3682709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1841364 + 1841365.

It is an arithmetic number, because the mean of its divisors is an integer number (1841365).

Almost surely, 2^3682729 is an apocalyptic number.

It is an amenable number.

3682729 is a deficient number, since it is larger than the sum of its proper divisors (1).

3682729 is an equidigital number, since it uses as much as digits as its factorization.

3682729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 37.

The square root of 3682729 is about 1919.0437722991. The cubic root of 3682729 is about 154.4270068511.

It can be divided in two parts, 36827 and 29, that added together give a triangular number (36856 = T₂₇₁).

The spelling of 3682729 in words is "three million, six hundred eighty-two thousand, seven hundred twenty-nine".