5949661 has 4 divisors (see below), whose sum is σ = 5959324. Its totient is φ = 5940000.

The previous prime is 5949653. The next prime is 5949673. The reversal of 5949661 is 1669495.

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 2869636 + 3080025 = 1694^2 + 1755^2 .

It is a cyclic number.

It is not a de Polignac number, because 5949661 - 2³ = 5949653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5944661) 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, 3840 + ... + 5161.

It is an arithmetic number, because the mean of its divisors is an integer number (1489831).

Almost surely, 2^5949661 is an apocalyptic number.

It is an amenable number.

5949661 is a deficient number, since it is larger than the sum of its proper divisors (9663).

5949661 is an equidigital number, since it uses as much as digits as its factorization.

5949661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9662.

The product of its digits is 58320, while the sum is 40.

The square root of 5949661 is about 2439.1926943151. The cubic root of 5949661 is about 181.2024534817.

It can be divided in two parts, 5949 and 661, that multiplied together give a square (3932289 = 1983²).

The spelling of 5949661 in words is "five million, nine hundred forty-nine thousand, six hundred sixty-one".