5640197 has 8 divisors (see below), whose sum is σ = 5760000. Its totient is φ = 5521824.

The previous prime is 5640163. The next prime is 5640211. The reversal of 5640197 is 7910465.

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 5640197 - 2¹⁰ = 5639173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5640157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11054 + ... + 11552.

It is an arithmetic number, because the mean of its divisors is an integer number (720000).

Almost surely, 2^5640197 is an apocalyptic number.

It is an amenable number.

5640197 is a deficient number, since it is larger than the sum of its proper divisors (119803).

5640197 is a wasteful number, since it uses less digits than its factorization.

5640197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 5640197 is about 2374.9098930275. The cubic root of 5640197 is about 178.0046815248.

The spelling of 5640197 in words is "five million, six hundred forty thousand, one hundred ninety-seven".