3309861 has 8 divisors (see below), whose sum is σ = 4605120. Its totient is φ = 2110592.

The previous prime is 3309851. The next prime is 3309869. The reversal of 3309861 is 1689033.

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 3309861 - 2⁵ = 3309829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3309869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23916 + ... + 24053.

It is an arithmetic number, because the mean of its divisors is an integer number (575640).

Almost surely, 2^3309861 is an apocalyptic number.

It is an amenable number.

3309861 is a deficient number, since it is larger than the sum of its proper divisors (1295259).

3309861 is a wasteful number, since it uses less digits than its factorization.

3309861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47995.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 3309861 is about 1819.3023388101. The cubic root of 3309861 is about 149.0287018864.

The spelling of 3309861 in words is "three million, three hundred nine thousand, eight hundred sixty-one".