2478591 has 6 divisors (see below), whose sum is σ = 3580200. Its totient is φ = 1652388.

The previous prime is 2478589. The next prime is 2478611. The reversal of 2478591 is 1958742.

It is not a de Polignac number, because 2478591 - 2¹ = 2478589 is a prime.

It is a super-2 number, since 2×2478591² = 12286826690562, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2478521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 137691 + ... + 137708.

It is an arithmetic number, because the mean of its divisors is an integer number (596700).

2^2478591 is an apocalyptic number.

2478591 is a deficient number, since it is larger than the sum of its proper divisors (1101609).

2478591 is a wasteful number, since it uses less digits than its factorization.

2478591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275405 (or 275402 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 2478591 is about 1574.3541532959. The cubic root of 2478591 is about 135.3323498571.

The spelling of 2478591 in words is "two million, four hundred seventy-eight thousand, five hundred ninety-one".