2478903 has 8 divisors (see below), whose sum is σ = 3777408. Its totient is φ = 1416504.

The previous prime is 2478899. The next prime is 2478937. The reversal of 2478903 is 3098742.

2478903 = T₁₃₂ + T₁₃₃ + ... + T₂₅₇.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2478903 - 2² = 2478899 is a prime.

It is a super-2 number, since 2×2478903² = 12289920166818, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2478953) 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 7 ways as a sum of consecutive naturals, for example, 59001 + ... + 59042.

It is an arithmetic number, because the mean of its divisors is an integer number (472176).

2^2478903 is an apocalyptic number.

2478903 is a deficient number, since it is larger than the sum of its proper divisors (1298505).

2478903 is a wasteful number, since it uses less digits than its factorization.

2478903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118053.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 2478903 is about 1574.4532384291. The cubic root of 2478903 is about 135.3380280726.

The spelling of 2478903 in words is "two million, four hundred seventy-eight thousand, nine hundred three".