5781628 has 6 divisors (see below), whose sum is σ = 10117856. Its totient is φ = 2890812.

The previous prime is 5781623. The next prime is 5781637. The reversal of 5781628 is 8261875.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5781623) 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 as a sum of consecutive naturals, namely, 722700 + ... + 722707.

Almost surely, 2^5781628 is an apocalyptic number.

It is an amenable number.

5781628 is a deficient number, since it is larger than the sum of its proper divisors (4336228).

5781628 is a wasteful number, since it uses less digits than its factorization.

5781628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445411 (or 1445409 counting only the distinct ones).

The product of its digits is 26880, while the sum is 37.

The square root of 5781628 is about 2404.5016115611. The cubic root of 5781628 is about 179.4802703309.

The spelling of 5781628 in words is "five million, seven hundred eighty-one thousand, six hundred twenty-eight".