3128375 has 16 divisors (see below), whose sum is σ = 4043520. Its totient is φ = 2413600.

The previous prime is 3128339. The next prime is 3128381. The reversal of 3128375 is 5738213.

It is not a de Polignac number, because 3128375 - 2⁶ = 3128311 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3194 + ... + 4056.

It is an arithmetic number, because the mean of its divisors is an integer number (252720).

Almost surely, 2^3128375 is an apocalyptic number.

3128375 is a deficient number, since it is larger than the sum of its proper divisors (915145).

3128375 is an equidigital number, since it uses as much as digits as its factorization.

3128375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907 (or 897 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 3128375 is about 1768.7212895196. The cubic root of 3128375 is about 146.2535002937.

The spelling of 3128375 in words is "three million, one hundred twenty-eight thousand, three hundred seventy-five".