3499805 has 4 divisors (see below), whose sum is σ = 4199772. Its totient is φ = 2799840.

The previous prime is 3499799. The next prime is 3499823. The reversal of 3499805 is 5089943.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1592644 + 1907161 = 1262^2 + 1381^2 .

It is a de Polignac number, because none of the positive numbers 2^k-3499805 is a prime.

It is a Duffinian number.

It is a Curzon 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 3 ways as a sum of consecutive naturals, for example, 349976 + ... + 349985.

It is an arithmetic number, because the mean of its divisors is an integer number (1049943).

Almost surely, 2^3499805 is an apocalyptic number.

It is an amenable number.

3499805 is a deficient number, since it is larger than the sum of its proper divisors (699967).

3499805 is an equidigital number, since it uses as much as digits as its factorization.

3499805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699966.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 3499805 is about 1870.7765767189. The cubic root of 3499805 is about 151.8266288517.

The spelling of 3499805 in words is "three million, four hundred ninety-nine thousand, eight hundred five".