275693649 has 24 divisors (see below), whose sum is σ = 466482528. Its totient is φ = 143216640.

The previous prime is 275693603. The next prime is 275693659. The reversal of 275693649 is 946396572.

It is not a de Polignac number, because 275693649 - 2⁷ = 275693521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (275693659) 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 23 ways as a sum of consecutive naturals, for example, 83632 + ... + 86865.

It is an arithmetic number, because the mean of its divisors is an integer number (19436772).

Almost surely, 2^275693649 is an apocalyptic number.

It is an amenable number.

275693649 is a deficient number, since it is larger than the sum of its proper divisors (190788879).

275693649 is a wasteful number, since it uses less digits than its factorization.

275693649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170525 (or 170518 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 51.

The square root of 275693649 is about 16604.0250842981. The cubic root of 275693649 is about 650.8420243340.

The spelling of 275693649 in words is "two hundred seventy-five million, six hundred ninety-three thousand, six hundred forty-nine".