5661764 has 6 divisors (see below), whose sum is σ = 9908094. Its totient is φ = 2830880.

The previous prime is 5661743. The next prime is 5661779. The reversal of 5661764 is 4671665.

It can be written as a sum of positive squares in only one way, i.e., 4202500 + 1459264 = 2050^2 + 1208^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 707717 + ... + 707724.

It is an arithmetic number, because the mean of its divisors is an integer number (1651349).

Almost surely, 2^5661764 is an apocalyptic number.

It is an amenable number.

5661764 is a deficient number, since it is larger than the sum of its proper divisors (4246330).

5661764 is a wasteful number, since it uses less digits than its factorization.

5661764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415445 (or 1415443 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 5661764 is about 2379.4461540451. The cubic root of 5661764 is about 178.2312778717.

Subtracting from 5661764 its reverse (4671665), we obtain a palindrome (990099).

The spelling of 5661764 in words is "five million, six hundred sixty-one thousand, seven hundred sixty-four".