275681893 has 4 divisors (see below), whose sum is σ = 275743468. Its totient is φ = 275620320.

The previous prime is 275681891. The next prime is 275681899. The reversal of 275681893 is 398186572.

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 223293249 + 52388644 = 14943^2 + 7238^2 .

It is a cyclic number.

It is not a de Polignac number, because 275681893 - 2¹ = 275681891 is a prime.

It is a super-2 number, since 2×275681893² = 152001012256126898, 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 (275681891) 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 3 ways as a sum of consecutive naturals, for example, 23496 + ... + 33217.

It is an arithmetic number, because the mean of its divisors is an integer number (68935867).

Almost surely, 2^275681893 is an apocalyptic number.

It is an amenable number.

275681893 is a deficient number, since it is larger than the sum of its proper divisors (61575).

275681893 is an equidigital number, since it uses as much as digits as its factorization.

275681893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61574.

The product of its digits is 725760, while the sum is 49.

The square root of 275681893 is about 16603.6710699773. The cubic root of 275681893 is about 650.8327732351.

The spelling of 275681893 in words is "two hundred seventy-five million, six hundred eighty-one thousand, eight hundred ninety-three".