3788421 has 16 divisors (see below), whose sum is σ = 6217344. Its totient is φ = 1998144.

The previous prime is 3788419. The next prime is 3788423. The reversal of 3788421 is 1248873.

3788421 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3788419) and next prime (3788423).

It is not a de Polignac number, because 3788421 - 2¹ = 3788419 is a prime.

It is a d-powerful number, because it can be written as 3⁵ + 7⁶ + 8³ + 8⁷ + 4¹⁰ + 2¹⁹ + 1 .

3788421 is strictly pandigital in base 8.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3788423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6666 + ... + 7211.

It is an arithmetic number, because the mean of its divisors is an integer number (388584).

Almost surely, 2^3788421 is an apocalyptic number.

It is an amenable number.

3788421 is a deficient number, since it is larger than the sum of its proper divisors (2428923).

3788421 is a wasteful number, since it uses less digits than its factorization.

3788421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13900.

The product of its digits is 10752, while the sum is 33.

The square root of 3788421 is about 1946.3866522354. The cubic root of 3788421 is about 155.8904144904.

The spelling of 3788421 in words is "three million, seven hundred eighty-eight thousand, four hundred twenty-one".