2849621 has 4 divisors (see below), whose sum is σ = 2860044. Its totient is φ = 2839200.

The previous prime is 2849617. The next prime is 2849633. The reversal of 2849621 is 1269482.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1269482 = 2 ⋅634741.

It can be written as a sum of positive squares in 2 ways, for example, as 1188100 + 1661521 = 1090^2 + 1289^2 .

It is a cyclic number.

It is not a de Polignac number, because 2849621 - 2² = 2849617 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 (2849681) 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, 4790 + ... + 5351.

It is an arithmetic number, because the mean of its divisors is an integer number (715011).

2^2849621 is an apocalyptic number.

It is an amenable number.

2849621 is a deficient number, since it is larger than the sum of its proper divisors (10423).

2849621 is a wasteful number, since it uses less digits than its factorization.

2849621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10422.

The product of its digits is 6912, while the sum is 32.

The square root of 2849621 is about 1688.0820477690. The cubic root of 2849621 is about 141.7737088726.

The spelling of 2849621 in words is "two million, eight hundred forty-nine thousand, six hundred twenty-one".