2436661 has 4 divisors (see below), whose sum is σ = 2580012. Its totient is φ = 2293312.

The previous prime is 2436653. The next prime is 2436677. The reversal of 2436661 is 1666342.

2436661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1666342 = 2 ⋅833171.

It can be written as a sum of positive squares in 2 ways, for example, as 731025 + 1705636 = 855^2 + 1306^2 .

It is a cyclic number.

It is not a de Polignac number, because 2436661 - 2³ = 2436653 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2436601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71650 + ... + 71683.

It is an arithmetic number, because the mean of its divisors is an integer number (645003).

2^2436661 is an apocalyptic number.

It is an amenable number.

2436661 is a deficient number, since it is larger than the sum of its proper divisors (143351).

2436661 is a wasteful number, since it uses less digits than its factorization.

2436661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143350.

The product of its digits is 5184, while the sum is 28.

The square root of 2436661 is about 1560.9807814320. The cubic root of 2436661 is about 134.5648724520.

The spelling of 2436661 in words is "two million, four hundred thirty-six thousand, six hundred sixty-one".