5638147 has 2 divisors, whose sum is σ = 5638148. Its totient is φ = 5638146.

The previous prime is 5638141. The next prime is 5638159. The reversal of 5638147 is 7418365.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5638147 - 2⁷ = 5638019 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is equal to p₃₈₉₆₄₄ and since 5638147 and 389644 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (5638141) 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 as a sum of consecutive naturals, namely, 2819073 + 2819074.

It is an arithmetic number, because the mean of its divisors is an integer number (2819074).

Almost surely, 2^5638147 is an apocalyptic number.

5638147 is a deficient number, since it is larger than the sum of its proper divisors (1).

5638147 is an equidigital number, since it uses as much as digits as its factorization.

5638147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 34.

The square root of 5638147 is about 2374.4782584812. The cubic root of 5638147 is about 177.9831129037.

The spelling of 5638147 in words is "five million, six hundred thirty-eight thousand, one hundred forty-seven".