3537805 has 4 divisors (see below), whose sum is σ = 4245372. Its totient is φ = 2830240.

The previous prime is 3537773. The next prime is 3537811. The reversal of 3537805 is 5087353.

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 1865956 + 1671849 = 1366^2 + 1293^2 .

It is not a de Polignac number, because 3537805 - 2⁵ = 3537773 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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353776 + ... + 353785.

It is an arithmetic number, because the mean of its divisors is an integer number (1061343).

Almost surely, 2^3537805 is an apocalyptic number.

It is an amenable number.

3537805 is a deficient number, since it is larger than the sum of its proper divisors (707567).

3537805 is an equidigital number, since it uses as much as digits as its factorization.

3537805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707566.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 3537805 is about 1880.9053671038. The cubic root of 3537805 is about 152.3741504048.

It can be divided in two parts, 353780 and 5, that multiplied together give a square (1768900 = 1330²).

The spelling of 3537805 in words is "three million, five hundred thirty-seven thousand, eight hundred five".