2875381 has 4 divisors (see below), whose sum is σ = 2953132. Its totient is φ = 2797632.

The previous prime is 2875373. The next prime is 2875387. The reversal of 2875381 is 1835782.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2056356 + 819025 = 1434^2 + 905^2 .

It is a cyclic number.

It is not a de Polignac number, because 2875381 - 2³ = 2875373 is a prime.

It is a super-2 number, since 2×2875381² = 16535631790322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2875387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38820 + ... + 38893.

It is an arithmetic number, because the mean of its divisors is an integer number (738283).

2^2875381 is an apocalyptic number.

It is an amenable number.

2875381 is a deficient number, since it is larger than the sum of its proper divisors (77751).

2875381 is an equidigital number, since it uses as much as digits as its factorization.

2875381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77750.

The product of its digits is 13440, while the sum is 34.

The square root of 2875381 is about 1695.6948428299. The cubic root of 2875381 is about 142.1996299518.

The spelling of 2875381 in words is "two million, eight hundred seventy-five thousand, three hundred eighty-one".