3654841 has 8 divisors (see below), whose sum is σ = 3806280. Its totient is φ = 3505152.

The previous prime is 3654829. The next prime is 3654851. The reversal of 3654841 is 1484563.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 60025 + 3594816 = 245^2 + 1896^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3654841 - 2⁵ = 3654809 is a prime.

It is a Duffinian number.

3654841 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3654851) 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 7 ways as a sum of consecutive naturals, for example, 5271 + ... + 5923.

It is an arithmetic number, because the mean of its divisors is an integer number (475785).

Almost surely, 2^3654841 is an apocalyptic number.

It is an amenable number.

3654841 is a deficient number, since it is larger than the sum of its proper divisors (151439).

3654841 is a wasteful number, since it uses less digits than its factorization.

3654841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875.

The product of its digits is 11520, while the sum is 31.

The square root of 3654841 is about 1911.7638452487. The cubic root of 3654841 is about 154.0362117577.

The spelling of 3654841 in words is "three million, six hundred fifty-four thousand, eight hundred forty-one".