5640393 has 8 divisors (see below), whose sum is σ = 8204256. Its totient is φ = 3418400.

The previous prime is 5640389. The next prime is 5640403. The reversal of 5640393 is 3930465.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 5640393 - 2² = 5640389 is a prime.

It is a super-3 number, since 3×5640393³ (a number of 21 digits) contains 333 as substring.

5640393 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 5640393.

It is not an unprimeable number, because it can be changed into a prime (5640343) 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, 85428 + ... + 85493.

It is an arithmetic number, because the mean of its divisors is an integer number (1025532).

Almost surely, 2^5640393 is an apocalyptic number.

It is an amenable number.

5640393 is a deficient number, since it is larger than the sum of its proper divisors (2563863).

5640393 is a wasteful number, since it uses less digits than its factorization.

5640393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170935.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 5640393 is about 2374.9511573925. The cubic root of 5640393 is about 178.0067434217.

The spelling of 5640393 in words is "five million, six hundred forty thousand, three hundred ninety-three".