270397 has 4 divisors (see below), whose sum is σ = 275040. Its totient is φ = 265756.

The previous prime is 270379. The next prime is 270407. The reversal of 270397 is 793072.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 270397 - 2⁷ = 270269 is a prime.

It is a super-2 number, since 2×270397² = 146229075218, 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 (270307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2233 + ... + 2350.

It is an arithmetic number, because the mean of its divisors is an integer number (68760).

2²⁷⁰³⁹⁷ is an apocalyptic number.

It is an amenable number.

270397 is a deficient number, since it is larger than the sum of its proper divisors (4643).

270397 is an equidigital number, since it uses as much as digits as its factorization.

270397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4642.

The product of its (nonzero) digits is 2646, while the sum is 28.

The square root of 270397 is about 519.9971153766. The cubic root of 270397 is about 64.6647033567.

The spelling of 270397 in words is "two hundred seventy thousand, three hundred ninety-seven".