3668849 has 4 divisors (see below), whose sum is σ = 3713136. Its totient is φ = 3624564.

The previous prime is 3668837. The next prime is 3668851. The reversal of 3668849 is 9488663.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3668849 - 2⁸ = 3668593 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3668869) 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, 22019 + ... + 22184.

It is an arithmetic number, because the mean of its divisors is an integer number (928284).

Almost surely, 2^3668849 is an apocalyptic number.

It is an amenable number.

3668849 is a deficient number, since it is larger than the sum of its proper divisors (44287).

3668849 is an equidigital number, since it uses as much as digits as its factorization.

3668849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44286.

The product of its digits is 248832, while the sum is 44.

The square root of 3668849 is about 1915.4239739546. The cubic root of 3668849 is about 154.2327536807.

The spelling of 3668849 in words is "three million, six hundred sixty-eight thousand, eight hundred forty-nine".