3455905 has 4 divisors (see below), whose sum is σ = 4147092. Its totient is φ = 2764720.

The previous prime is 3455897. The next prime is 3455909. The reversal of 3455905 is 5095543.

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 1745041 + 1710864 = 1321^2 + 1308^2 .

It is not a de Polignac number, because 3455905 - 2³ = 3455897 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3455909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345586 + ... + 345595.

It is an arithmetic number, because the mean of its divisors is an integer number (1036773).

Almost surely, 2^3455905 is an apocalyptic number.

It is an amenable number.

3455905 is a deficient number, since it is larger than the sum of its proper divisors (691187).

3455905 is an equidigital number, since it uses as much as digits as its factorization.

3455905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691186.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 3455905 is about 1859.0064550722. The cubic root of 3455905 is about 151.1891406448.

The spelling of 3455905 in words is "three million, four hundred fifty-five thousand, nine hundred five".