3523805 has 4 divisors (see below), whose sum is σ = 4228572. Its totient is φ = 2819040.

The previous prime is 3523799. The next prime is 3523823. The reversal of 3523805 is 5083253.

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 1315609 + 2208196 = 1147^2 + 1486^2 .

It is not a de Polignac number, because 3523805 - 2¹⁴ = 3507421 is a prime.

It is an Ulam number.

It is a Duffinian 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, 352376 + ... + 352385.

It is an arithmetic number, because the mean of its divisors is an integer number (1057143).

Almost surely, 2^3523805 is an apocalyptic number.

It is an amenable number.

3523805 is a deficient number, since it is larger than the sum of its proper divisors (704767).

3523805 is an equidigital number, since it uses as much as digits as its factorization.

3523805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704766.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 3523805 is about 1877.1800659500. The cubic root of 3523805 is about 152.1728901854.

The spelling of 3523805 in words is "three million, five hundred twenty-three thousand, eight hundred five".