3659121 has 16 divisors (see below), whose sum is σ = 5515200. Its totient is φ = 2397024.

The previous prime is 3659113. The next prime is 3659141. The reversal of 3659121 is 1219563.

3659121 is a `hidden beast` number, since 3 + 659 + 1 + 2 + 1 = 666.

It is not a de Polignac number, because 3659121 - 2³ = 3659113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3659111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 445 + ... + 2741.

It is an arithmetic number, because the mean of its divisors is an integer number (344700).

Almost surely, 2^3659121 is an apocalyptic number.

It is an amenable number.

3659121 is a deficient number, since it is larger than the sum of its proper divisors (1856079).

3659121 is a wasteful number, since it uses less digits than its factorization.

3659121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2365 (or 2359 counting only the distinct ones).

The product of its digits is 1620, while the sum is 27.

The square root of 3659121 is about 1912.8829028459. The cubic root of 3659121 is about 154.0963163154.

The spelling of 3659121 in words is "three million, six hundred fifty-nine thousand, one hundred twenty-one".