2849661 has 16 divisors (see below), whose sum is σ = 4277120. Its totient is φ = 1898316.

The previous prime is 2849647. The next prime is 2849663. The reversal of 2849661 is 1669482.

It is a de Polignac number, because none of the positive numbers 2^k-2849661 is a prime.

It is a Duffinian number.

2849661 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2849663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1536 + ... + 2838.

It is an arithmetic number, because the mean of its divisors is an integer number (267320).

2^2849661 is an apocalyptic number.

It is an amenable number.

2849661 is a deficient number, since it is larger than the sum of its proper divisors (1427459).

2849661 is an frugal number, since it uses more digits than its factorization.

2849661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324 (or 1306 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 2849661 is about 1688.0938954928. The cubic root of 2849661 is about 141.7743722265.

The spelling of 2849661 in words is "two million, eight hundred forty-nine thousand, six hundred sixty-one".