275072379 has 4 divisors (see below), whose sum is σ = 366763176. Its totient is φ = 183381584.

The previous prime is 275072351. The next prime is 275072381. The reversal of 275072379 is 973270572.

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

It is a cyclic number.

It is not a de Polignac number, because 275072379 - 2⁷ = 275072251 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 275072379.

It is not an unprimeable number, because it can be changed into a prime (275070379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45845394 + ... + 45845399.

It is an arithmetic number, because the mean of its divisors is an integer number (91690794).

Almost surely, 2^275072379 is an apocalyptic number.

275072379 is a deficient number, since it is larger than the sum of its proper divisors (91690797).

275072379 is an equidigital number, since it uses as much as digits as its factorization.

275072379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91690796.

The product of its (nonzero) digits is 185220, while the sum is 42.

The square root of 275072379 is about 16585.3061171629. The cubic root of 275072379 is about 650.3527702444.

The spelling of 275072379 in words is "two hundred seventy-five million, seventy-two thousand, three hundred seventy-nine".