2479949 has 4 divisors (see below), whose sum is σ = 2483100. Its totient is φ = 2476800.

The previous prime is 2479927. The next prime is 2479963. The reversal of 2479949 is 9499742.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1909924 + 570025 = 1382^2 + 755^2 .

It is a cyclic number.

It is not a de Polignac number, because 2479949 - 2⁸ = 2479693 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2479049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 749 + ... + 2349.

It is an arithmetic number, because the mean of its divisors is an integer number (620775).

2^2479949 is an apocalyptic number.

It is an amenable number.

2479949 is a deficient number, since it is larger than the sum of its proper divisors (3151).

2479949 is a wasteful number, since it uses less digits than its factorization.

2479949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3150.

The product of its digits is 163296, while the sum is 44.

The square root of 2479949 is about 1574.7853822029. The cubic root of 2479949 is about 135.3570611786.

The spelling of 2479949 in words is "two million, four hundred seventy-nine thousand, nine hundred forty-nine".