5781916 has 24 divisors (see below), whose sum is σ = 11878496. Its totient is φ = 2410560.

The previous prime is 5781911. The next prime is 5781961. The reversal of 5781916 is 6191875.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5781911) 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, 1755 + ... + 3826.

Almost surely, 2^5781916 is an apocalyptic number.

It is an amenable number.

5781916 is an abundant number, since it is smaller than the sum of its proper divisors (6096580).

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

5781916 is a wasteful number, since it uses less digits than its factorization.

5781916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5629 (or 5627 counting only the distinct ones).

The product of its digits is 15120, while the sum is 37.

The square root of 5781916 is about 2404.5614984857. The cubic root of 5781916 is about 179.4832504293.

The spelling of 5781916 in words is "five million, seven hundred eighty-one thousand, nine hundred sixteen".