5677721 has 16 divisors (see below), whose sum is σ = 6763008. Its totient is φ = 4665600.

The previous prime is 5677709. The next prime is 5677723. The reversal of 5677721 is 1277765.

It is a cyclic number.

It is not a de Polignac number, because 5677721 - 2¹⁸ = 5415577 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5677723) 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 15 ways as a sum of consecutive naturals, for example, 20816 + ... + 21086.

It is an arithmetic number, because the mean of its divisors is an integer number (422688).

Almost surely, 2^5677721 is an apocalyptic number.

It is an amenable number.

5677721 is a deficient number, since it is larger than the sum of its proper divisors (1085287).

5677721 is a wasteful number, since it uses less digits than its factorization.

5677721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392.

The product of its digits is 20580, while the sum is 35.

The square root of 5677721 is about 2382.7968860144. The cubic root of 5677721 is about 178.3985619442.

It can be divided in two parts, 56 and 77721, that added together give a palindrome (77777).

The spelling of 5677721 in words is "five million, six hundred seventy-seven thousand, seven hundred twenty-one".