3638369 has 8 divisors (see below), whose sum is σ = 4301760. Its totient is φ = 3010896.

The previous prime is 3638351. The next prime is 3638407. The reversal of 3638369 is 9638363.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3638369 - 2⁸ = 3638113 is a prime.

It is a super-2 number, since 2×3638369² = 26475457960322, which contains 22 as substring.

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

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3635369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8759 + ... + 9164.

It is an arithmetic number, because the mean of its divisors is an integer number (537720).

Almost surely, 2^3638369 is an apocalyptic number.

It is an amenable number.

3638369 is a deficient number, since it is larger than the sum of its proper divisors (663391).

3638369 is a wasteful number, since it uses less digits than its factorization.

3638369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17959.

The product of its digits is 69984, while the sum is 38.

The square root of 3638369 is about 1907.4509167997. The cubic root of 3638369 is about 153.8044546795.

The spelling of 3638369 in words is "three million, six hundred thirty-eight thousand, three hundred sixty-nine".