3681049 has 2 divisors, whose sum is σ = 3681050. Its totient is φ = 3681048.

The previous prime is 3681043. The next prime is 3681059. The reversal of 3681049 is 9401863.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2347024 + 1334025 = 1532^2 + 1155^2 .

It is an emirp because it is prime and its reverse (9401863) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3681049 - 2⁵ = 3681017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3681049.

It is not a weakly prime, because it can be changed into another prime (3681043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1840524 + 1840525.

It is an arithmetic number, because the mean of its divisors is an integer number (1840525).

Almost surely, 2^3681049 is an apocalyptic number.

It is an amenable number.

3681049 is a deficient number, since it is larger than the sum of its proper divisors (1).

3681049 is an equidigital number, since it uses as much as digits as its factorization.

3681049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 3681049 is about 1918.6060043688. The cubic root of 3681049 is about 154.4035209315.

The spelling of 3681049 in words is "three million, six hundred eighty-one thousand, forty-nine".