2573849 has 4 divisors (see below), whose sum is σ = 2578560. Its totient is φ = 2569140.

The previous prime is 2573833. The next prime is 2573869. The reversal of 2573849 is 9483752.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2573849 - 2⁴ = 2573833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2573869) 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, 1409 + ... + 2670.

It is an arithmetic number, because the mean of its divisors is an integer number (644640).

2^2573849 is an apocalyptic number.

It is an amenable number.

2573849 is a deficient number, since it is larger than the sum of its proper divisors (4711).

2573849 is an equidigital number, since it uses as much as digits as its factorization.

2573849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4710.

The product of its digits is 60480, while the sum is 38.

The square root of 2573849 is about 1604.3219751658. The cubic root of 2573849 is about 137.0443140785.

Subtracting 2573849 from its reverse (9483752), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 2573849 in words is "two million, five hundred seventy-three thousand, eight hundred forty-nine".