10421375 has 16 divisors (see below), whose sum is σ = 13096512. Its totient is φ = 8279200.

The previous prime is 10421371. The next prime is 10421377. The reversal of 10421375 is 57312401.

It is not a de Polignac number, because 10421375 - 2² = 10421371 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10421375.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10421371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32717 + ... + 33033.

It is an arithmetic number, because the mean of its divisors is an integer number (818532).

Almost surely, 2^10421375 is an apocalyptic number.

10421375 is a deficient number, since it is larger than the sum of its proper divisors (2675137).

10421375 is an equidigital number, since it uses as much as digits as its factorization.

10421375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595 (or 585 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 10421375 is about 3228.2154512981. The cubic root of 10421375 is about 218.4280160918.

Adding to 10421375 its reverse (57312401), we get a palindrome (67733776).

The spelling of 10421375 in words is "ten million, four hundred twenty-one thousand, three hundred seventy-five".