3658841 has 4 divisors (see below), whose sum is σ = 3718884. Its totient is φ = 3598800.

The previous prime is 3658829. The next prime is 3658847. The reversal of 3658841 is 1488563.

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 313600 + 3345241 = 560^2 + 1829^2 .

It is a cyclic number.

It is not a de Polignac number, because 3658841 - 2¹⁸ = 3396697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3658847) 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, 29930 + ... + 30051.

It is an arithmetic number, because the mean of its divisors is an integer number (929721).

Almost surely, 2^3658841 is an apocalyptic number.

It is an amenable number.

3658841 is a deficient number, since it is larger than the sum of its proper divisors (60043).

3658841 is an equidigital number, since it uses as much as digits as its factorization.

3658841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60042.

The product of its digits is 23040, while the sum is 35.

The square root of 3658841 is about 1912.8097134843. The cubic root of 3658841 is about 154.0923856748.

The spelling of 3658841 in words is "three million, six hundred fifty-eight thousand, eight hundred forty-one".