5781298 has 4 divisors (see below), whose sum is σ = 8671950. Its totient is φ = 2890648.

The previous prime is 5781289. The next prime is 5781311. The reversal of 5781298 is 8921875.

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

It can be written as a sum of positive squares in only one way, i.e., 5774409 + 6889 = 2403^2 + 83^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 5781298.

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, 1445323 + ... + 1445326.

Almost surely, 2^5781298 is an apocalyptic number.

5781298 is a deficient number, since it is larger than the sum of its proper divisors (2890652).

5781298 is a wasteful number, since it uses less digits than its factorization.

5781298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2890651.

The product of its digits is 40320, while the sum is 40.

The square root of 5781298 is about 2404.4329892929. The cubic root of 5781298 is about 179.4768555133.

The spelling of 5781298 in words is "five million, seven hundred eighty-one thousand, two hundred ninety-eight".