3784891 has 8 divisors (see below), whose sum is σ = 4153968. Its totient is φ = 3420000.

The previous prime is 3784873. The next prime is 3784901. The reversal of 3784891 is 1984873.

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

It is a cyclic number.

It is not a de Polignac number, because 3784891 - 2²¹ = 1687739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3784861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1041 + ... + 2941.

It is an arithmetic number, because the mean of its divisors is an integer number (519246).

Almost surely, 2^3784891 is an apocalyptic number.

3784891 is a deficient number, since it is larger than the sum of its proper divisors (369077).

3784891 is a wasteful number, since it uses less digits than its factorization.

3784891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2093.

The product of its digits is 48384, while the sum is 40.

The square root of 3784891 is about 1945.4796323786. The cubic root of 3784891 is about 155.8419805764.

The spelling of 3784891 in words is "three million, seven hundred eighty-four thousand, eight hundred ninety-one".