3928136 has 32 divisors (see below), whose sum is σ = 7946400. Its totient is φ = 1814400.

The previous prime is 3928123. The next prime is 3928151. The reversal of 3928136 is 6318293.

3928136 = 234² + 235² + ... + 290².

3928136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6236 + ... + 6836.

It is an arithmetic number, because the mean of its divisors is an integer number (248325).

Almost surely, 2^3928136 is an apocalyptic number.

It is an amenable number.

3928136 is an abundant number, since it is smaller than the sum of its proper divisors (4018264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3928136 is a wasteful number, since it uses less digits than its factorization.

3928136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669 (or 665 counting only the distinct ones).

The product of its digits is 7776, while the sum is 32.

The square root of 3928136 is about 1981.9525725910. The cubic root of 3928136 is about 157.7837130317.

The spelling of 3928136 in words is "three million, nine hundred twenty-eight thousand, one hundred thirty-six".