3804991 has 4 divisors (see below), whose sum is σ = 4028832. Its totient is φ = 3581152.

The previous prime is 3804989. The next prime is 3805001. The reversal of 3804991 is 1994083.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3804991 - 2¹ = 3804989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3804091) 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, 111895 + ... + 111928.

It is an arithmetic number, because the mean of its divisors is an integer number (1007208).

Almost surely, 2^3804991 is an apocalyptic number.

3804991 is a deficient number, since it is larger than the sum of its proper divisors (223841).

3804991 is a wasteful number, since it uses less digits than its factorization.

3804991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223840.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 3804991 is about 1950.6386133777. The cubic root of 3804991 is about 156.1173645620.

The spelling of 3804991 in words is "three million, eight hundred four thousand, nine hundred ninety-one".