3638361 has 4 divisors (see below), whose sum is σ = 4851152. Its totient is φ = 2425572.

The previous prime is 3638351. The next prime is 3638407. The reversal of 3638361 is 1638363.

3638361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3638361 - 2⁷ = 3638233 is a prime.

It is a D-number.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3638351) 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 in 3 ways as a sum of consecutive naturals, for example, 606391 + ... + 606396.

It is an arithmetic number, because the mean of its divisors is an integer number (1212788).

Almost surely, 2^3638361 is an apocalyptic number.

It is an amenable number.

3638361 is a deficient number, since it is larger than the sum of its proper divisors (1212791).

3638361 is a wasteful number, since it uses less digits than its factorization.

3638361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212790.

The product of its digits is 7776, while the sum is 30.

The square root of 3638361 is about 1907.4488197590. The cubic root of 3638361 is about 153.8043419516.

The spelling of 3638361 in words is "three million, six hundred thirty-eight thousand, three hundred sixty-one".