5640965 has 8 divisors (see below), whose sum is σ = 7384608. Its totient is φ = 4102480.

The previous prime is 5640961. The next prime is 5640989. The reversal of 5640965 is 5690465.

It is a happy number.

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

It is not a de Polignac number, because 5640965 - 2² = 5640961 is a prime.

It is a super-2 number, since 2×5640965² = 63640972262450, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 51227 + ... + 51336.

It is an arithmetic number, because the mean of its divisors is an integer number (923076).

Almost surely, 2^5640965 is an apocalyptic number.

5640965 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5640965 is a deficient number, since it is larger than the sum of its proper divisors (1743643).

5640965 is a wasteful number, since it uses less digits than its factorization.

5640965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102579.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 5640965 is about 2375.0715778688. The cubic root of 5640965 is about 178.0127605210.

The spelling of 5640965 in words is "five million, six hundred forty thousand, nine hundred sixty-five".