3688642 has 8 divisors (see below), whose sum is σ = 5544000. Its totient is φ = 1840644.

The previous prime is 3688637. The next prime is 3688649. The reversal of 3688642 is 2468863.

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

It is not an unprimeable number, because it can be changed into a prime (3688649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342 + ... + 2737.

It is an arithmetic number, because the mean of its divisors is an integer number (693000).

Almost surely, 2^3688642 is an apocalyptic number.

3688642 is a deficient number, since it is larger than the sum of its proper divisors (1855358).

3688642 is a wasteful number, since it uses less digits than its factorization.

3688642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3680.

The product of its digits is 55296, while the sum is 37.

The square root of 3688642 is about 1920.5837654213. The cubic root of 3688642 is about 154.5096121347.

The spelling of 3688642 in words is "three million, six hundred eighty-eight thousand, six hundred forty-two".