2531798 has 4 divisors (see below), whose sum is σ = 3797700. Its totient is φ = 1265898.

The previous prime is 2531777. The next prime is 2531803. The reversal of 2531798 is 8971352.

2531798 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×2531798² = 12820002225608, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 632948 + ... + 632951.

It is an arithmetic number, because the mean of its divisors is an integer number (949425).

2^2531798 is an apocalyptic number.

2531798 is a deficient number, since it is larger than the sum of its proper divisors (1265902).

2531798 is a wasteful number, since it uses less digits than its factorization.

2531798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265901.

The product of its digits is 15120, while the sum is 35.

The square root of 2531798 is about 1591.1624681345. The cubic root of 2531798 is about 136.2938786376.

The spelling of 2531798 in words is "two million, five hundred thirty-one thousand, seven hundred ninety-eight".