2539923 has 12 divisors (see below), whose sum is σ = 3503304. Its totient is φ = 1636800.

The previous prime is 2539871. The next prime is 2539951. The reversal of 2539923 is 3299352.

It is not a de Polignac number, because 2539923 - 2¹⁴ = 2523539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2539963) 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, 2443 + ... + 3323.

It is an arithmetic number, because the mean of its divisors is an integer number (291942).

2^2539923 is an apocalyptic number.

2539923 is a deficient number, since it is larger than the sum of its proper divisors (963381).

2539923 is an equidigital number, since it uses as much as digits as its factorization.

2539923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946 (or 915 counting only the distinct ones).

The product of its digits is 14580, while the sum is 33.

The square root of 2539923 is about 1593.7135878193. The cubic root of 2539923 is about 136.4395202288.

The spelling of 2539923 in words is "two million, five hundred thirty-nine thousand, nine hundred twenty-three".