3788891 has 4 divisors (see below), whose sum is σ = 3800472. Its totient is φ = 3777312.

The previous prime is 3788861. The next prime is 3788903. The reversal of 3788891 is 1988873.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1988873 = 1063 ⋅1871.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3788891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3788861) 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, 5285 + ... + 5958.

It is an arithmetic number, because the mean of its divisors is an integer number (950118).

Almost surely, 2^3788891 is an apocalyptic number.

3788891 is a deficient number, since it is larger than the sum of its proper divisors (11581).

3788891 is a wasteful number, since it uses less digits than its factorization.

3788891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11580.

The product of its digits is 96768, while the sum is 44.

The square root of 3788891 is about 1946.5073850361. The cubic root of 3788891 is about 155.8968609285.

The spelling of 3788891 in words is "three million, seven hundred eighty-eight thousand, eight hundred ninety-one".