4036849 has 4 divisors (see below), whose sum is σ = 4078564. Its totient is φ = 3995136.

The previous prime is 4036841. The next prime is 4036861. The reversal of 4036849 is 9486304.

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 3356224 + 680625 = 1832^2 + 825^2 .

It is a cyclic number.

It is not a de Polignac number, because 4036849 - 2³ = 4036841 is a prime.

It is a super-2 number, since 2×4036849² = 32592299697602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4036841) 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, 20712 + ... + 20905.

It is an arithmetic number, because the mean of its divisors is an integer number (1019641).

Almost surely, 2^4036849 is an apocalyptic number.

It is an amenable number.

4036849 is a deficient number, since it is larger than the sum of its proper divisors (41715).

4036849 is an equidigital number, since it uses as much as digits as its factorization.

4036849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41714.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 4036849 is about 2009.1911307788. The cubic root of 4036849 is about 159.2260671481.

The spelling of 4036849 in words is "four million, thirty-six thousand, eight hundred forty-nine".