3974855 has 16 divisors (see below), whose sum is σ = 5111424. Its totient is φ = 2956800.

The previous prime is 3974849. The next prime is 3974881. The reversal of 3974855 is 5584793.

It is not a de Polignac number, because 3974855 - 2¹⁸ = 3712711 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 8354 + ... + 8816.

It is an arithmetic number, because the mean of its divisors is an integer number (319464).

Almost surely, 2^3974855 is an apocalyptic number.

3974855 is a deficient number, since it is larger than the sum of its proper divisors (1136569).

3974855 is a wasteful number, since it uses less digits than its factorization.

3974855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586.

The product of its digits is 151200, while the sum is 41.

The square root of 3974855 is about 1993.7038395910. The cubic root of 3974855 is about 158.4067790989.

The spelling of 3974855 in words is "three million, nine hundred seventy-four thousand, eight hundred fifty-five".