275238893 has 8 divisors (see below), whose sum is σ = 287314200. Its totient is φ = 263407680.

The previous prime is 275238889. The next prime is 275238937. The reversal of 275238893 is 398832572.

It can be written as a sum of positive squares in 4 ways, for example, as 5031049 + 270207844 = 2243^2 + 16438^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 275238893 - 2² = 275238889 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275238833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58718 + ... + 63231.

It is an arithmetic number, because the mean of its divisors is an integer number (35914275).

Almost surely, 2^275238893 is an apocalyptic number.

It is an amenable number.

275238893 is a deficient number, since it is larger than the sum of its proper divisors (12075307).

275238893 is a wasteful number, since it uses less digits than its factorization.

275238893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122047.

The product of its digits is 725760, while the sum is 47.

The square root of 275238893 is about 16590.3252831281. The cubic root of 275238893 is about 650.4839732843.

The spelling of 275238893 in words is "two hundred seventy-five million, two hundred thirty-eight thousand, eight hundred ninety-three".