3638366 has 4 divisors (see below), whose sum is σ = 5457552. Its totient is φ = 1819182.

The previous prime is 3638351. The next prime is 3638407. The reversal of 3638366 is 6638363.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 909590 + ... + 909593.

It is an arithmetic number, because the mean of its divisors is an integer number (1364388).

Almost surely, 2^3638366 is an apocalyptic number.

3638366 is a deficient number, since it is larger than the sum of its proper divisors (1819186).

3638366 is a wasteful number, since it uses less digits than its factorization.

3638366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1819185.

The product of its digits is 46656, while the sum is 35.

The square root of 3638366 is about 1907.4501304097. The cubic root of 3638366 is about 153.8044124065.

It can be divided in two parts, 3638 and 366, that added together give a palindrome (4004).

The spelling of 3638366 in words is "three million, six hundred thirty-eight thousand, three hundred sixty-six".