3545785 has 4 divisors (see below), whose sum is σ = 4254948. Its totient is φ = 2836624.

The previous prime is 3545783. The next prime is 3545791. The reversal of 3545785 is 5875453.

3545785 = 1331² + 1332².

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5875453 = 229 ⋅25657.

It can be written as a sum of positive squares in 2 ways, for example, as 1774224 + 1771561 = 1332^2 + 1331^2 .

It is a cyclic number.

It is not a de Polignac number, because 3545785 - 2¹ = 3545783 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3545783) 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, 354574 + ... + 354583.

It is an arithmetic number, because the mean of its divisors is an integer number (1063737).

Almost surely, 2^3545785 is an apocalyptic number.

3545785 is the 1332-nd centered square number.

It is an amenable number.

3545785 is a deficient number, since it is larger than the sum of its proper divisors (709163).

3545785 is an equidigital number, since it uses as much as digits as its factorization.

3545785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709162.

The product of its digits is 84000, while the sum is 37.

The square root of 3545785 is about 1883.0254910648. The cubic root of 3545785 is about 152.4886312406.

The spelling of 3545785 in words is "three million, five hundred forty-five thousand, seven hundred eighty-five".