3427805 has 16 divisors (see below), whose sum is σ = 4402944. Its totient is φ = 2555520.

The previous prime is 3427799. The next prime is 3427811. The reversal of 3427805 is 5087243.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3427799) and next prime (3427811).

It is not a de Polignac number, because 3427805 - 2⁴ = 3427789 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 16.

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, 4352 + ... + 5078.

It is an arithmetic number, because the mean of its divisors is an integer number (275184).

Almost surely, 2^3427805 is an apocalyptic number.

It is an amenable number.

3427805 is a deficient number, since it is larger than the sum of its proper divisors (975139).

3427805 is a wasteful number, since it uses less digits than its factorization.

3427805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 3427805 is about 1851.4332286097. The cubic root of 3427805 is about 150.7782514773.

The spelling of 3427805 in words is "three million, four hundred twenty-seven thousand, eight hundred five".