3738689 has 4 divisors (see below), whose sum is σ = 3742656. Its totient is φ = 3734724.

The previous prime is 3738661. The next prime is 3738701. The reversal of 3738689 is 9868373.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9868373 = 1367 ⋅7219.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3738689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3738659) 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, 332 + ... + 2754.

It is an arithmetic number, because the mean of its divisors is an integer number (935664).

Almost surely, 2^3738689 is an apocalyptic number.

It is an amenable number.

3738689 is a deficient number, since it is larger than the sum of its proper divisors (3967).

3738689 is a wasteful number, since it uses less digits than its factorization.

3738689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3966.

The product of its digits is 217728, while the sum is 44.

The square root of 3738689 is about 1933.5689798918. The cubic root of 3738689 is about 155.2052639524.

The spelling of 3738689 in words is "three million, seven hundred thirty-eight thousand, six hundred eighty-nine".