2573993 has 4 divisors (see below), whose sum is σ = 2617680. Its totient is φ = 2530308.

The previous prime is 2573983. The next prime is 2574007. The reversal of 2573993 is 3993752.

2573993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2573993 - 2⁸ = 2573737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2573983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21755 + ... + 21872.

It is an arithmetic number, because the mean of its divisors is an integer number (654420).

2^2573993 is an apocalyptic number.

It is an amenable number.

2573993 is a deficient number, since it is larger than the sum of its proper divisors (43687).

2573993 is an equidigital number, since it uses as much as digits as its factorization.

2573993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43686.

The product of its digits is 51030, while the sum is 38.

The square root of 2573993 is about 1604.3668533101. The cubic root of 2573993 is about 137.0468697857.

It can be divided in two parts, 257 and 3993, that multiplied together give a palindrome (1026201).

The spelling of 2573993 in words is "two million, five hundred seventy-three thousand, nine hundred ninety-three".