3854805 has 16 divisors (see below), whose sum is σ = 6247680. Its totient is φ = 2029248.

The previous prime is 3854797. The next prime is 3854827. The reversal of 3854805 is 5084583.

It is a happy number.

It is not a de Polignac number, because 3854805 - 2³ = 3854797 is a prime.

3854805 is a lucky number.

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, 442 + ... + 2811.

It is an arithmetic number, because the mean of its divisors is an integer number (390480).

Almost surely, 2^3854805 is an apocalyptic number.

It is an amenable number.

3854805 is a deficient number, since it is larger than the sum of its proper divisors (2392875).

3854805 is a wasteful number, since it uses less digits than its factorization.

3854805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3340.

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 3854805 is about 1963.3657326133. The cubic root of 3854805 is about 156.7956962280.

The spelling of 3854805 in words is "three million, eight hundred fifty-four thousand, eight hundred five".