3939321 has 8 divisors (see below), whose sum is σ = 5380704. Its totient is φ = 2562080.

The previous prime is 3939277. The next prime is 3939337. The reversal of 3939321 is 1239393.

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 3939321 - 2¹¹ = 3937273 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3939361) 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, 15891 + ... + 16136.

It is an arithmetic number, because the mean of its divisors is an integer number (672588).

Almost surely, 2^3939321 is an apocalyptic number.

It is an amenable number.

3939321 is a deficient number, since it is larger than the sum of its proper divisors (1441383).

3939321 is a wasteful number, since it uses less digits than its factorization.

3939321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32071.

The product of its digits is 4374, while the sum is 30.

The square root of 3939321 is about 1984.7722791293. The cubic root of 3939321 is about 157.9333292390.

The spelling of 3939321 in words is "three million, nine hundred thirty-nine thousand, three hundred twenty-one".