3797891 has 4 divisors (see below), whose sum is σ = 3997800. Its totient is φ = 3597984.

The previous prime is 3797879. The next prime is 3797909. The reversal of 3797891 is 1987973.

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

It is a cyclic number.

It is not a de Polignac number, because 3797891 - 2¹⁴ = 3781507 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (3797191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99926 + ... + 99963.

It is an arithmetic number, because the mean of its divisors is an integer number (999450).

Almost surely, 2^3797891 is an apocalyptic number.

3797891 is a deficient number, since it is larger than the sum of its proper divisors (199909).

3797891 is a wasteful number, since it uses less digits than its factorization.

3797891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199908.

The product of its digits is 95256, while the sum is 44.

The square root of 3797891 is about 1948.8178467984. The cubic root of 3797891 is about 156.0202006495.

The spelling of 3797891 in words is "three million, seven hundred ninety-seven thousand, eight hundred ninety-one".