275475947 has 4 divisors (see below), whose sum is σ = 275636640. Its totient is φ = 275315256.

The previous prime is 275475943. The next prime is 275476001. The reversal of 275475947 is 749574572.

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 275475947 - 2² = 275475943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 275475895 and 275475904.

It is not an unprimeable number, because it can be changed into a prime (275475943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77747 + ... + 81212.

It is an arithmetic number, because the mean of its divisors is an integer number (68909160).

Almost surely, 2^275475947 is an apocalyptic number.

275475947 is a deficient number, since it is larger than the sum of its proper divisors (160693).

275475947 is a wasteful number, since it uses less digits than its factorization.

275475947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160692.

The product of its digits is 2469600, while the sum is 50.

The square root of 275475947 is about 16597.4680900431. The cubic root of 275475947 is about 650.6706663521.

The spelling of 275475947 in words is "two hundred seventy-five million, four hundred seventy-five thousand, nine hundred forty-seven".