5643766 has 8 divisors (see below), whose sum is σ = 8495424. Its totient is φ = 2811960.

The previous prime is 5643733. The next prime is 5643769. The reversal of 5643766 is 6673465.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5643769) 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, 4230 + ... + 5401.

It is an arithmetic number, because the mean of its divisors is an integer number (1061928).

Almost surely, 2^5643766 is an apocalyptic number.

5643766 is the 1503-rd centered pentagonal number.

5643766 is a deficient number, since it is larger than the sum of its proper divisors (2851658).

5643766 is a wasteful number, since it uses less digits than its factorization.

5643766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9926.

The product of its digits is 90720, while the sum is 37.

The square root of 5643766 is about 2375.6611711269. The cubic root of 5643766 is about 178.0422195017.

The spelling of 5643766 in words is "five million, six hundred forty-three thousand, seven hundred sixty-six".