3994771 has 4 divisors (see below), whose sum is σ = 4357944. Its totient is φ = 3631600.

The previous prime is 3994763. The next prime is 3994777. The reversal of 3994771 is 1774993.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1774993 = 11 ⋅161363.

It is a cyclic number.

It is not a de Polignac number, because 3994771 - 2³ = 3994763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3994777) 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, 181570 + ... + 181591.

It is an arithmetic number, because the mean of its divisors is an integer number (1089486).

Almost surely, 2^3994771 is an apocalyptic number.

3994771 is a deficient number, since it is larger than the sum of its proper divisors (363173).

3994771 is a wasteful number, since it uses less digits than its factorization.

3994771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363172.

The product of its digits is 47628, while the sum is 40.

The square root of 3994771 is about 1998.6923224949. The cubic root of 3994771 is about 158.6709040328.

The spelling of 3994771 in words is "three million, nine hundred ninety-four thousand, seven hundred seventy-one".