3539845 has 4 divisors (see below), whose sum is σ = 4247820. Its totient is φ = 2831872.

The previous prime is 3539839. The next prime is 3539849. The reversal of 3539845 is 5489353.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5489353 = 1019 ⋅5387.

It can be written as a sum of positive squares in 2 ways, for example, as 1640961 + 1898884 = 1281^2 + 1378^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3539845 is a prime.

It is a d-powerful number, because it can be written as 3⁸ + 5³ + 3¹² + 9 + 8 + 4¹⁰ + 5⁹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3539849) 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, 353980 + ... + 353989.

It is an arithmetic number, because the mean of its divisors is an integer number (1061955).

Almost surely, 2^3539845 is an apocalyptic number.

It is an amenable number.

3539845 is a deficient number, since it is larger than the sum of its proper divisors (707975).

3539845 is an equidigital number, since it uses as much as digits as its factorization.

3539845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707974.

The product of its digits is 64800, while the sum is 37.

The square root of 3539845 is about 1881.4475809865. The cubic root of 3539845 is about 152.4034325481.

The spelling of 3539845 in words is "three million, five hundred thirty-nine thousand, eight hundred forty-five".