3849405 has 32 divisors (see below), whose sum is σ = 7166208. Its totient is φ = 1728000.

The previous prime is 3849401. The next prime is 3849409. The reversal of 3849405 is 5049483.

It is an interprime number because it is at equal distance from previous prime (3849401) and next prime (3849409).

It is not a de Polignac number, because 3849405 - 2² = 3849401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3849401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6105 + ... + 6705.

It is an arithmetic number, because the mean of its divisors is an integer number (223944).

Almost surely, 2^3849405 is an apocalyptic number.

3849405 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3849405 is a deficient number, since it is larger than the sum of its proper divisors (3316803).

3849405 is a wasteful number, since it uses less digits than its factorization.

3849405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 3849405 is about 1961.9900611369. The cubic root of 3849405 is about 156.7224463116.

The spelling of 3849405 in words is "three million, eight hundred forty-nine thousand, four hundred five".