3545849 has 4 divisors (see below), whose sum is σ = 3585780. Its totient is φ = 3505920.

The previous prime is 3545831. The next prime is 3545851. The reversal of 3545849 is 9485453.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9485453 = 23 ⋅412411.

It can be written as a sum of positive squares in 2 ways, for example, as 846400 + 2699449 = 920^2 + 1643^2 .

It is a cyclic number.

It is not a de Polignac number, because 3545849 - 2¹² = 3541753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3545819) by changing a digit.

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, 19832 + ... + 20009.

It is an arithmetic number, because the mean of its divisors is an integer number (896445).

Almost surely, 2^3545849 is an apocalyptic number.

It is an amenable number.

3545849 is a deficient number, since it is larger than the sum of its proper divisors (39931).

3545849 is an equidigital number, since it uses as much as digits as its factorization.

3545849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39930.

The product of its digits is 86400, while the sum is 38.

The square root of 3545849 is about 1883.0424849164. The cubic root of 3545849 is about 152.4895486880.

The spelling of 3545849 in words is "three million, five hundred forty-five thousand, eight hundred forty-nine".