9021375 has 72 divisors (see below), whose sum is σ = 18422352. Its totient is φ = 4374000.

The previous prime is 9021361. The next prime is 9021379. The reversal of 9021375 is 5731209.

It is not a de Polignac number, because 9021375 - 2⁸ = 9021119 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 (9021379) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 820120 + ... + 820130.

It is an arithmetic number, because the mean of its divisors is an integer number (255866).

Almost surely, 2^9021375 is an apocalyptic number.

9021375 is an abundant number, since it is smaller than the sum of its proper divisors (9400977).

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

9021375 is an frugal number, since it uses more digits than its factorization.

9021375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50 (or 19 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 9021375 is about 3003.5603872737. The cubic root of 9021375 is about 208.1729254132.

The spelling of 9021375 in words is "nine million, twenty-one thousand, three hundred seventy-five".