2821437 has 12 divisors (see below), whose sum is σ = 4137120. Its totient is φ = 1852488.

The previous prime is 2821421. The next prime is 2821451. The reversal of 2821437 is 7341282.

It is not a de Polignac number, because 2821437 - 2⁴ = 2821421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2821437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2821477) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1737 + ... + 2942.

It is an arithmetic number, because the mean of its divisors is an integer number (344760).

2^2821437 is an apocalyptic number.

It is an amenable number.

2821437 is a deficient number, since it is larger than the sum of its proper divisors (1315683).

2821437 is a wasteful number, since it uses less digits than its factorization.

2821437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4752 (or 4749 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 2821437 is about 1679.7133684055. The cubic root of 2821437 is about 141.3047580525.

The spelling of 2821437 in words is "two million, eight hundred twenty-one thousand, four hundred thirty-seven".