2523693 has 4 divisors (see below), whose sum is σ = 3364928. Its totient is φ = 1682460.

The previous prime is 2523671. The next prime is 2523707. The reversal of 2523693 is 3963252.

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 not a de Polignac number, because 2523693 - 2¹⁰ = 2522669 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2523693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2523643) 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, 420613 + ... + 420618.

It is an arithmetic number, because the mean of its divisors is an integer number (841232).

2^2523693 is an apocalyptic number.

It is an amenable number.

2523693 is a deficient number, since it is larger than the sum of its proper divisors (841235).

2523693 is an equidigital number, since it uses as much as digits as its factorization.

2523693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841234.

The product of its digits is 9720, while the sum is 30.

The square root of 2523693 is about 1588.6135464612. The cubic root of 2523693 is about 136.1482847730.

The spelling of 2523693 in words is "two million, five hundred twenty-three thousand, six hundred ninety-three".