5656761 has 12 divisors (see below), whose sum is σ = 8913840. Its totient is φ = 3428280.

The previous prime is 5656759. The next prime is 5656789. The reversal of 5656761 is 1676565.

It is a happy number.

It is not a de Polignac number, because 5656761 - 2¹ = 5656759 is a prime.

It is a super-2 number, since 2×5656761² = 63997890022242, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

5656761 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5652761) 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 11 ways as a sum of consecutive naturals, for example, 28471 + ... + 28668.

It is an arithmetic number, because the mean of its divisors is an integer number (742820).

Almost surely, 2^5656761 is an apocalyptic number.

It is an amenable number.

5656761 is a deficient number, since it is larger than the sum of its proper divisors (3257079).

5656761 is a wasteful number, since it uses less digits than its factorization.

5656761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57156 (or 57153 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 5656761 is about 2378.3946266337. The cubic root of 5656761 is about 178.1787645644.

The spelling of 5656761 in words is "five million, six hundred fifty-six thousand, seven hundred sixty-one".