275398 has 4 divisors (see below), whose sum is σ = 413100. Its totient is φ = 137698.

The previous prime is 275393. The next prime is 275399. The reversal of 275398 is 893572.

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

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275393) by changing a digit.

275398 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68848 + ... + 68851.

It is an arithmetic number, because the mean of its divisors is an integer number (103275).

2²⁷⁵³⁹⁸ is an apocalyptic number.

275398 is a deficient number, since it is larger than the sum of its proper divisors (137702).

275398 is a wasteful number, since it uses less digits than its factorization.

275398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137701.

The product of its digits is 15120, while the sum is 34.

The square root of 275398 is about 524.7837649928. The cubic root of 275398 is about 65.0609290624.

The spelling of 275398 in words is "two hundred seventy-five thousand, three hundred ninety-eight".