2478879 has 12 divisors (see below), whose sum is σ = 3856216. Its totient is φ = 1525392.

The previous prime is 2478877. The next prime is 2478899. The reversal of 2478879 is 9788742.

It is not a de Polignac number, because 2478879 - 2¹ = 2478877 is a prime.

It is a super-2 number, since 2×2478879² = 12289682193282, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2478877) 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 11 ways as a sum of consecutive naturals, for example, 10477 + ... + 10710.

2^2478879 is an apocalyptic number.

2478879 is a deficient number, since it is larger than the sum of its proper divisors (1377337).

2478879 is a wasteful number, since it uses less digits than its factorization.

2478879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21206 (or 21203 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 2478879 is about 1574.4456167172. The cubic root of 2478879 is about 135.3375913037.

The spelling of 2478879 in words is "two million, four hundred seventy-eight thousand, eight hundred seventy-nine".