3267661 has 4 divisors (see below), whose sum is σ = 3287872. Its totient is φ = 3247452.

The previous prime is 3267647. The next prime is 3267697. The reversal of 3267661 is 1667623.

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 3267661 - 2⁹ = 3267149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3267611) 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, 9861 + ... + 10186.

It is an arithmetic number, because the mean of its divisors is an integer number (821968).

Almost surely, 2^3267661 is an apocalyptic number.

It is an amenable number.

3267661 is a deficient number, since it is larger than the sum of its proper divisors (20211).

3267661 is a wasteful number, since it uses less digits than its factorization.

3267661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20210.

The product of its digits is 9072, while the sum is 31.

The square root of 3267661 is about 1807.6672813325. The cubic root of 3267661 is about 148.3926298580.

The spelling of 3267661 in words is "three million, two hundred sixty-seven thousand, six hundred sixty-one".