5640187 has 4 divisors (see below), whose sum is σ = 6445936. Its totient is φ = 4834440.

The previous prime is 5640163. The next prime is 5640211. The reversal of 5640187 is 7810465.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (5640163) and next prime (5640211).

It is a cyclic number.

It is not a de Polignac number, because 5640187 - 2⁷ = 5640059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5640157) 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, 402864 + ... + 402877.

It is an arithmetic number, because the mean of its divisors is an integer number (1611484).

Almost surely, 2^5640187 is an apocalyptic number.

5640187 is a deficient number, since it is larger than the sum of its proper divisors (805749).

5640187 is an equidigital number, since it uses as much as digits as its factorization.

5640187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805748.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 5640187 is about 2374.9077876836. The cubic root of 5640187 is about 178.0045763247.

The spelling of 5640187 in words is "five million, six hundred forty thousand, one hundred eighty-seven".