2539479 has 4 divisors (see below), whose sum is σ = 3385976. Its totient is φ = 1692984.

The previous prime is 2539469. The next prime is 2539513. The reversal of 2539479 is 9749352.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2539479 - 2⁴ = 2539463 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2539429) 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, 423244 + ... + 423249.

It is an arithmetic number, because the mean of its divisors is an integer number (846494).

2^2539479 is an apocalyptic number.

2539479 is a deficient number, since it is larger than the sum of its proper divisors (846497).

2539479 is an equidigital number, since it uses as much as digits as its factorization.

2539479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846496.

The product of its digits is 68040, while the sum is 39.

The square root of 2539479 is about 1593.5742844311. The cubic root of 2539479 is about 136.4315695052.

The spelling of 2539479 in words is "two million, five hundred thirty-nine thousand, four hundred seventy-nine".