3200661 has 8 divisors (see below), whose sum is σ = 4741760. Its totient is φ = 2133756.

The previous prime is 3200629. The next prime is 3200663. The reversal of 3200661 is 1660023.

It is a happy number.

3200661 is a `hidden beast` number, since 3 + 2 + 0 + 0 + 661 = 666.

3200661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3200661 - 2⁵ = 3200629 is a prime.

It is a Duffinian number.

3200661 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3200663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59245 + ... + 59298.

It is an arithmetic number, because the mean of its divisors is an integer number (592720).

Almost surely, 2^3200661 is an apocalyptic number.

It is an amenable number.

3200661 is a deficient number, since it is larger than the sum of its proper divisors (1541099).

3200661 is a wasteful number, since it uses less digits than its factorization.

3200661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118552 (or 118546 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 3200661 is about 1789.0391275766. The cubic root of 3200661 is about 147.3714056838.

Adding to 3200661 its reverse (1660023), we get a palindrome (4860684).

The spelling of 3200661 in words is "three million, two hundred thousand, six hundred sixty-one".