3928347 has 6 divisors (see below), whose sum is σ = 5674292. Its totient is φ = 2618892.

The previous prime is 3928319. The next prime is 3928361. The reversal of 3928347 is 7438293.

It is not a de Polignac number, because 3928347 - 2⁶ = 3928283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3928367) 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, 218233 + ... + 218250.

Almost surely, 2^3928347 is an apocalyptic number.

3928347 is a deficient number, since it is larger than the sum of its proper divisors (1745945).

3928347 is a wasteful number, since it uses less digits than its factorization.

3928347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436489 (or 436486 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 3928347 is about 1982.0058022115. The cubic root of 3928347 is about 157.7865381009.

The spelling of 3928347 in words is "three million, nine hundred twenty-eight thousand, three hundred forty-seven".