3928311 has 24 divisors (see below), whose sum is σ = 6062160. Its totient is φ = 2513952.

The previous prime is 3928303. The next prime is 3928313. The reversal of 3928311 is 1138293.

It is not a de Polignac number, because 3928311 - 2³ = 3928303 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3928313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22621 + ... + 22793.

It is an arithmetic number, because the mean of its divisors is an integer number (252590).

Almost surely, 2^3928311 is an apocalyptic number.

3928311 is a deficient number, since it is larger than the sum of its proper divisors (2133849).

3928311 is a wasteful number, since it uses less digits than its factorization.

3928311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240 (or 205 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 3928311 is about 1981.9967204816. The cubic root of 3928311 is about 157.7860561057.

The spelling of 3928311 in words is "three million, nine hundred twenty-eight thousand, three hundred eleven".