3788661 has 4 divisors (see below), whose sum is σ = 5051552. Its totient is φ = 2525772.

The previous prime is 3788639. The next prime is 3788663. The reversal of 3788661 is 1668873.

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.

It is not a de Polignac number, because 3788661 - 2⁶ = 3788597 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3788663) 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, 631441 + ... + 631446.

It is an arithmetic number, because the mean of its divisors is an integer number (1262888).

Almost surely, 2^3788661 is an apocalyptic number.

It is an amenable number.

3788661 is a deficient number, since it is larger than the sum of its proper divisors (1262891).

3788661 is a wasteful number, since it uses less digits than its factorization.

3788661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262890.

The product of its digits is 48384, while the sum is 39.

The square root of 3788661 is about 1946.4483039629. The cubic root of 3788661 is about 155.8937063552.

The spelling of 3788661 in words is "three million, seven hundred eighty-eight thousand, six hundred sixty-one".