3928750 has 40 divisors (see below), whose sum is σ = 8434800. Its totient is φ = 1344000.

The previous prime is 3928739. The next prime is 3928753. The reversal of 3928750 is 578293.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3928753) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8526 + ... + 8974.

It is an arithmetic number, because the mean of its divisors is an integer number (210870).

Almost surely, 2^3928750 is an apocalyptic number.

3928750 is an abundant number, since it is smaller than the sum of its proper divisors (4506050).

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

3928750 is an equidigital number, since it uses as much as digits as its factorization.

3928750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478 (or 463 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 3928750 is about 1982.1074642915. The cubic root of 3928750 is about 157.7919335679.

The spelling of 3928750 in words is "three million, nine hundred twenty-eight thousand, seven hundred fifty".