3759661 has 4 divisors (see below), whose sum is σ = 3830652. Its totient is φ = 3688672.

The previous prime is 3759643. The next prime is 3759667. The reversal of 3759661 is 1669573.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1669573 = 67 ⋅24919.

It can be written as a sum of positive squares in 2 ways, for example, as 1771561 + 1988100 = 1331^2 + 1410^2 .

It is a cyclic number.

It is not a de Polignac number, because 3759661 - 2⁹ = 3759149 is a prime.

It is a Duffinian number.

3759661 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3759661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3759667) 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, 35416 + ... + 35521.

It is an arithmetic number, because the mean of its divisors is an integer number (957663).

Almost surely, 2^3759661 is an apocalyptic number.

It is an amenable number.

3759661 is a deficient number, since it is larger than the sum of its proper divisors (70991).

3759661 is an equidigital number, since it uses as much as digits as its factorization.

3759661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70990.

The product of its digits is 34020, while the sum is 37.

The square root of 3759661 is about 1938.9845280455. The cubic root of 3759661 is about 155.4949285471.

The spelling of 3759661 in words is "three million, seven hundred fifty-nine thousand, six hundred sixty-one".