3979828 has 24 divisors (see below), whose sum is σ = 7338240. Its totient is φ = 1884960.

The previous prime is 3979771. The next prime is 3979837. The reversal of 3979828 is 8289793.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16533 + ... + 16771.

It is an arithmetic number, because the mean of its divisors is an integer number (305760).

Almost surely, 2^3979828 is an apocalyptic number.

It is an amenable number.

3979828 is a deficient number, since it is larger than the sum of its proper divisors (3358412).

3979828 is a wasteful number, since it uses less digits than its factorization.

3979828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447 (or 445 counting only the distinct ones).

The product of its digits is 217728, while the sum is 46.

The square root of 3979828 is about 1994.9506259554. The cubic root of 3979828 is about 158.4728132574.

The spelling of 3979828 in words is "three million, nine hundred seventy-nine thousand, eight hundred twenty-eight".