2573845 has 4 divisors (see below), whose sum is σ = 3088620. Its totient is φ = 2059072.

The previous prime is 2573833. The next prime is 2573869. The reversal of 2573845 is 5483752.

It is a happy number.

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 1811716 + 762129 = 1346^2 + 873^2 .

It is a cyclic number.

It is not a de Polignac number, because 2573845 - 2⁷ = 2573717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2573845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257380 + ... + 257389.

It is an arithmetic number, because the mean of its divisors is an integer number (772155).

2^2573845 is an apocalyptic number.

It is an amenable number.

2573845 is a deficient number, since it is larger than the sum of its proper divisors (514775).

2573845 is an equidigital number, since it uses as much as digits as its factorization.

2573845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514774.

The product of its digits is 33600, while the sum is 34.

The square root of 2573845 is about 1604.3207285328. The cubic root of 2573845 is about 137.0442430853.

The spelling of 2573845 in words is "two million, five hundred seventy-three thousand, eight hundred forty-five".