647260275 has 24 divisors (see below), whose sum is σ = 1070967664. Its totient is φ = 344937600.

The previous prime is 647260249. The next prime is 647260279. The reversal of 647260275 is 572062746.

It is a happy number.

It is not a de Polignac number, because 647260275 - 2⁹ = 647259763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (647260279) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128097 + ... + 133053.

Almost surely, 2^647260275 is an apocalyptic number.

647260275 is a deficient number, since it is larger than the sum of its proper divisors (423707389).

647260275 is a wasteful number, since it uses less digits than its factorization.

647260275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6711 (or 6706 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 39.

The square root of 647260275 is about 25441.3104025716. The cubic root of 647260275 is about 865.0203365417.

The spelling of 647260275 in words is "six hundred forty-seven million, two hundred sixty thousand, two hundred seventy-five".