275407 has 4 divisors (see below), whose sum is σ = 300456. Its totient is φ = 250360.

The previous prime is 275399. The next prime is 275419. The reversal of 275407 is 704572.

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

It is not a de Polignac number, because 275407 - 2³ = 275399 is a prime.

It is a Duffinian number.

275407 is a modest number, since divided by 407 gives 275 as remainder.

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 (275447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12508 + ... + 12529.

It is an arithmetic number, because the mean of its divisors is an integer number (75114).

2²⁷⁵⁴⁰⁷ is an apocalyptic number.

275407 is a deficient number, since it is larger than the sum of its proper divisors (25049).

275407 is a wasteful number, since it uses less digits than its factorization.

275407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25048.

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 275407 is about 524.7923398831. The cubic root of 275407 is about 65.0616377845.

Adding to 275407 its reverse (704572), we get a palindrome (979979).

The spelling of 275407 in words is "two hundred seventy-five thousand, four hundred seven".