5640966 has 12 divisors (see below), whose sum is σ = 12222132. Its totient is φ = 1880316.

The previous prime is 5640961. The next prime is 5640989. The reversal of 5640966 is 6690465.

It is a happy number.

5640966 is a `hidden beast` number, since 5 + 640 + 9 + 6 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 5640966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5640961) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 156676 + ... + 156711.

It is an arithmetic number, because the mean of its divisors is an integer number (1018511).

Almost surely, 2^5640966 is an apocalyptic number.

5640966 is an abundant number, since it is smaller than the sum of its proper divisors (6581166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5640966 is a wasteful number, since it uses less digits than its factorization.

5640966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313395 (or 313392 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 5640966 is about 2375.0717883887. The cubic root of 5640966 is about 178.0127710401.

The spelling of 5640966 in words is "five million, six hundred forty thousand, nine hundred sixty-six".