675972865 has 16 divisors (see below), whose sum is σ = 828954000. Its totient is φ = 528982272.

The previous prime is 675972859. The next prime is 675972881. The reversal of 675972865 is 568279576.

It can be written as a sum of positive squares in 8 ways, for example, as 12446784 + 663526081 = 3528^2 + 25759^2 .

It is a cyclic number.

It is not a de Polignac number, because 675972865 - 2¹¹ = 675970817 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88831 + ... + 96139.

It is an arithmetic number, because the mean of its divisors is an integer number (51809625).

Almost surely, 2^675972865 is an apocalyptic number.

It is an amenable number.

675972865 is a deficient number, since it is larger than the sum of its proper divisors (152981135).

675972865 is a wasteful number, since it uses less digits than its factorization.

675972865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7716.

The product of its digits is 6350400, while the sum is 55.

The square root of 675972865 is about 25999.4781678402. The cubic root of 675972865 is about 877.6265524196.

The spelling of 675972865 in words is "six hundred seventy-five million, nine hundred seventy-two thousand, eight hundred sixty-five".