2965661 has 4 divisors (see below), whose sum is σ = 3045852. Its totient is φ = 2885472.

The previous prime is 2965631. The next prime is 2965681. The reversal of 2965661 is 1665692.

It is a happy number.

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 2856100 + 109561 = 1690^2 + 331^2 .

It is a cyclic number.

It is not a de Polignac number, because 2965661 - 2¹⁴ = 2949277 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 (2965601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40040 + ... + 40113.

It is an arithmetic number, because the mean of its divisors is an integer number (761463).

2^2965661 is an apocalyptic number.

It is an amenable number.

2965661 is a deficient number, since it is larger than the sum of its proper divisors (80191).

2965661 is an equidigital number, since it uses as much as digits as its factorization.

2965661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80190.

The product of its digits is 19440, while the sum is 35.

The square root of 2965661 is about 1722.1094622584. The cubic root of 2965661 is about 143.6725616940.

The spelling of 2965661 in words is "two million, nine hundred sixty-five thousand, six hundred sixty-one".