3638534 has 8 divisors (see below), whose sum is σ = 5466528. Its totient is φ = 1816360.

The previous prime is 3638521. The next prime is 3638549. The reversal of 3638534 is 4358363.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3638534.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 824 + ... + 2820.

It is an arithmetic number, because the mean of its divisors is an integer number (683316).

Almost surely, 2^3638534 is an apocalyptic number.

3638534 is a deficient number, since it is larger than the sum of its proper divisors (1827994).

3638534 is a wasteful number, since it uses less digits than its factorization.

3638534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2910.

The product of its digits is 25920, while the sum is 32.

The square root of 3638534 is about 1907.4941677499. The cubic root of 3638534 is about 153.8067796545.

The spelling of 3638534 in words is "three million, six hundred thirty-eight thousand, five hundred thirty-four".