2547998 has 16 divisors (see below), whose sum is σ = 3991680. Its totient is φ = 1218336.

The previous prime is 2547997. The next prime is 2548003. The reversal of 2547998 is 8997452.

It is a happy number.

2547998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2547997) 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 7 ways as a sum of consecutive naturals, for example, 11315 + ... + 11537.

It is an arithmetic number, because the mean of its divisors is an integer number (249480).

2^2547998 is an apocalyptic number.

2547998 is a deficient number, since it is larger than the sum of its proper divisors (1443682).

2547998 is a wasteful number, since it uses less digits than its factorization.

2547998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451.

The product of its digits is 181440, while the sum is 44.

The square root of 2547998 is about 1596.2449686687. The cubic root of 2547998 is about 136.5839581524.

It can be divided in two parts, 25479 and 98, that multiplied together give a palindrome (2496942).

The spelling of 2547998 in words is "two million, five hundred forty-seven thousand, nine hundred ninety-eight".