2509479 has 24 divisors (see below), whose sum is σ = 4216992. Its totient is φ = 1408320.

The previous prime is 2509433. The next prime is 2509483. The reversal of 2509479 is 9749052.

2509479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2509479 - 2¹² = 2505383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2509499) 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 23 ways as a sum of consecutive naturals, for example, 3517 + ... + 4169.

It is an arithmetic number, because the mean of its divisors is an integer number (175708).

2^2509479 is an apocalyptic number.

2509479 is a deficient number, since it is larger than the sum of its proper divisors (1707513).

2509479 is a wasteful number, since it uses less digits than its factorization.

2509479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727 (or 724 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 2509479 is about 1584.1335171001. The cubic root of 2509479 is about 135.8921975875.

The spelling of 2509479 in words is "two million, five hundred nine thousand, four hundred seventy-nine".