3638375 has 16 divisors (see below), whose sum is σ = 4892160. Its totient is φ = 2685600.

The previous prime is 3638351. The next prime is 3638407. The reversal of 3638375 is 5738363.

It is not a de Polignac number, because 3638375 - 2²⁰ = 2589799 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 506 + ... + 2744.

It is an arithmetic number, because the mean of its divisors is an integer number (305760).

Almost surely, 2^3638375 is an apocalyptic number.

3638375 is a deficient number, since it is larger than the sum of its proper divisors (1253785).

3638375 is a wasteful number, since it uses less digits than its factorization.

3638375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2267 (or 2257 counting only the distinct ones).

The product of its digits is 45360, while the sum is 35.

The square root of 3638375 is about 1907.4524895787. The cubic root of 3638375 is about 153.8045392252.

The spelling of 3638375 in words is "three million, six hundred thirty-eight thousand, three hundred seventy-five".