5781366 has 12 divisors (see below), whose sum is σ = 12526332. Its totient is φ = 1927116.

The previous prime is 5781331. The next prime is 5781371. The reversal of 5781366 is 6631875.

It is a self number, because there is not a number n which added to its sum of digits gives 5781366.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 160576 + ... + 160611.

It is an arithmetic number, because the mean of its divisors is an integer number (1043861).

Almost surely, 2^5781366 is an apocalyptic number.

5781366 is an abundant number, since it is smaller than the sum of its proper divisors (6744966).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5781366 is a wasteful number, since it uses less digits than its factorization.

5781366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321195 (or 321192 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 5781366 is about 2404.4471297993. The cubic root of 5781366 is about 179.4775591833.

The spelling of 5781366 in words is "five million, seven hundred eighty-one thousand, three hundred sixty-six".