5663761 has 4 divisors (see below), whose sum is σ = 5698672. Its totient is φ = 5628852.

The previous prime is 5663759. The next prime is 5663783. The reversal of 5663761 is 1673665.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5663761 - 2¹ = 5663759 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5663561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17211 + ... + 17536.

It is an arithmetic number, because the mean of its divisors is an integer number (1424668).

Almost surely, 2^5663761 is an apocalyptic number.

It is an amenable number.

5663761 is a deficient number, since it is larger than the sum of its proper divisors (34911).

5663761 is a wasteful number, since it uses less digits than its factorization.

5663761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34910.

The product of its digits is 22680, while the sum is 34.

The square root of 5663761 is about 2379.8657525163. The cubic root of 5663761 is about 178.2522304713.

The spelling of 5663761 in words is "five million, six hundred sixty-three thousand, seven hundred sixty-one".