3638147 has 2 divisors, whose sum is σ = 3638148. Its totient is φ = 3638146.

The previous prime is 3638113. The next prime is 3638149. The reversal of 3638147 is 7418363.

3638147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3638147 - 2⁸ = 3637891 is a prime.

It is a super-2 number, since 2×3638147² = 26472227187218, which contains 22 as substring.

Together with 3638149, it forms a pair of twin primes.

It is a Chen prime.

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

It is not a weakly prime, because it can be changed into another prime (3638149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1819073 + 1819074.

It is an arithmetic number, because the mean of its divisors is an integer number (1819074).

Almost surely, 2^3638147 is an apocalyptic number.

3638147 is a deficient number, since it is larger than the sum of its proper divisors (1).

3638147 is an equidigital number, since it uses as much as digits as its factorization.

3638147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 32.

The square root of 3638147 is about 1907.3927230647. The cubic root of 3638147 is about 153.8013264203.

It can be divided in two parts, 36 and 38147, that added together give a palindrome (38183).

The spelling of 3638147 in words is "three million, six hundred thirty-eight thousand, one hundred forty-seven".