3949321 has 8 divisors (see below), whose sum is σ = 4402080. Its totient is φ = 3521088.

The previous prime is 3949313. The next prime is 3949333. The reversal of 3949321 is 1239493.

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 3949321 - 2³ = 3949313 is a prime.

It is a super-2 number, since 2×3949321² = 31194272722082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3949301) 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, 5791 + ... + 6436.

It is an arithmetic number, because the mean of its divisors is an integer number (550260).

Almost surely, 2^3949321 is an apocalyptic number.

It is an amenable number.

3949321 is a deficient number, since it is larger than the sum of its proper divisors (452759).

3949321 is a wasteful number, since it uses less digits than its factorization.

3949321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12263.

The product of its digits is 5832, while the sum is 31.

The square root of 3949321 is about 1987.2898631050. The cubic root of 3949321 is about 158.0668546859.

The spelling of 3949321 in words is "three million, nine hundred forty-nine thousand, three hundred twenty-one".