3661090 has 16 divisors (see below), whose sum is σ = 6619320. Its totient is φ = 1457920.

The previous prime is 3661043. The next prime is 3661093. The reversal of 3661090 is 901663.

It can be written as a sum of positive squares in 4 ways, for example, as 1390041 + 2271049 = 1179^2 + 1507^2 .

It is not an unprimeable number, because it can be changed into a prime (3661093) 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 7 ways as a sum of consecutive naturals, for example, 2010 + ... + 3370.

Almost surely, 2^3661090 is an apocalyptic number.

3661090 is a deficient number, since it is larger than the sum of its proper divisors (2958230).

3661090 is a wasteful number, since it uses less digits than its factorization.

3661090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1637.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 3661090 is about 1913.3975018276. The cubic root of 3661090 is about 154.1239514806.

The spelling of 3661090 in words is "three million, six hundred sixty-one thousand, ninety".