3921229 has 8 divisors (see below), whose sum is σ = 4263840. Its totient is φ = 3584496.

The previous prime is 3921227. The next prime is 3921287. The reversal of 3921229 is 9221293.

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 3921229 - 2¹ = 3921227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3921197 and 3921206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3921227) 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, 19 + ... + 2800.

It is an arithmetic number, because the mean of its divisors is an integer number (532980).

Almost surely, 2^3921229 is an apocalyptic number.

It is an amenable number.

3921229 is a deficient number, since it is larger than the sum of its proper divisors (342611).

3921229 is a wasteful number, since it uses less digits than its factorization.

3921229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2939.

The product of its digits is 1944, while the sum is 28.

The square root of 3921229 is about 1980.2093323687. The cubic root of 3921229 is about 157.6911796194.

The spelling of 3921229 in words is "three million, nine hundred twenty-one thousand, two hundred twenty-nine".