3928906 has 8 divisors (see below), whose sum is σ = 6149664. Its totient is φ = 1879020.

The previous prime is 3928849. The next prime is 3928913. The reversal of 3928906 is 6098293.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42660 + ... + 42751.

It is an arithmetic number, because the mean of its divisors is an integer number (768708).

Almost surely, 2^3928906 is an apocalyptic number.

3928906 is a deficient number, since it is larger than the sum of its proper divisors (2220758).

3928906 is a wasteful number, since it uses less digits than its factorization.

3928906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85436.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 3928906 is about 1982.1468159549. The cubic root of 3928906 is about 157.7940220368.

The spelling of 3928906 in words is "three million, nine hundred twenty-eight thousand, nine hundred six".