2980661 has 4 divisors (see below), whose sum is σ = 3156012. Its totient is φ = 2805312.

The previous prime is 2980583. The next prime is 2980669. The reversal of 2980661 is 1660892.

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 2656900 + 323761 = 1630^2 + 569^2 .

It is a cyclic number.

It is not a de Polignac number, because 2980661 - 2¹⁴ = 2964277 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 (2980669) 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, 87650 + ... + 87683.

It is an arithmetic number, because the mean of its divisors is an integer number (789003).

2^2980661 is an apocalyptic number.

It is an amenable number.

2980661 is a deficient number, since it is larger than the sum of its proper divisors (175351).

2980661 is a wasteful number, since it uses less digits than its factorization.

2980661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175350.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 2980661 is about 1726.4590930572. The cubic root of 2980661 is about 143.9143813308.

The spelling of 2980661 in words is "two million, nine hundred eighty thousand, six hundred sixty-one".