2921375 has 8 divisors (see below), whose sum is σ = 3646032. Its totient is φ = 2337000.

The previous prime is 2921371. The next prime is 2921417. The reversal of 2921375 is 5731292.

It is not a de Polignac number, because 2921375 - 2² = 2921371 is a prime.

It is a d-powerful number, because it can be written as 2⁹ + 9² + 2²¹ + 1 + 3⁴ + 7⁷ + 5 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2921371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11561 + ... + 11810.

It is an arithmetic number, because the mean of its divisors is an integer number (455754).

2^2921375 is an apocalyptic number.

2921375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2921375 is a deficient number, since it is larger than the sum of its proper divisors (724657).

2921375 is an equidigital number, since it uses as much as digits as its factorization.

2921375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23386 (or 23376 counting only the distinct ones).

The product of its digits is 3780, while the sum is 29.

The square root of 2921375 is about 1709.2030306549. The cubic root of 2921375 is about 142.9538214627.

The spelling of 2921375 in words is "two million, nine hundred twenty-one thousand, three hundred seventy-five".