3921307 has 6 divisors (see below), whose sum is σ = 4246332. Its totient is φ = 3619512.

The previous prime is 3921301. The next prime is 3921343. The reversal of 3921307 is 7031293.

It is not a de Polignac number, because 3921307 - 2⁷ = 3921179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3921301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11433 + ... + 11770.

It is an arithmetic number, because the mean of its divisors is an integer number (707722).

Almost surely, 2^3921307 is an apocalyptic number.

3921307 is a deficient number, since it is larger than the sum of its proper divisors (325025).

3921307 is a wasteful number, since it uses less digits than its factorization.

3921307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23229 (or 23216 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 3921307 is about 1980.2290271582. The cubic root of 3921307 is about 157.6922251956.

The spelling of 3921307 in words is "three million, nine hundred twenty-one thousand, three hundred seven".