3928907 has 8 divisors (see below), whose sum is σ = 4079040. Its totient is φ = 3781440.

The previous prime is 3928849. The next prime is 3928913. The reversal of 3928907 is 7098293.

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 3928907 - 2⁶ = 3928843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3928937) 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, 2633 + ... + 3845.

It is an arithmetic number, because the mean of its divisors is an integer number (509880).

Almost surely, 2^3928907 is an apocalyptic number.

3928907 is a deficient number, since it is larger than the sum of its proper divisors (150133).

3928907 is a wasteful number, since it uses less digits than its factorization.

3928907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 3928907 is about 1982.1470682066. The cubic root of 3928907 is about 157.7940354242.

The spelling of 3928907 in words is "three million, nine hundred twenty-eight thousand, nine hundred seven".