882640865 has 4 divisors (see below), whose sum is σ = 1059169044. Its totient is φ = 706112688.

The previous prime is 882640861. The next prime is 882640873. The reversal of 882640865 is 568046288.

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

It can be written as a sum of positive squares in 2 ways, for example, as 516607441 + 366033424 = 22729^2 + 19132^2 .

It is a cyclic number.

It is not a de Polignac number, because 882640865 - 2² = 882640861 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (882640861) 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, 88264082 + ... + 88264091.

It is an arithmetic number, because the mean of its divisors is an integer number (264792261).

Almost surely, 2^882640865 is an apocalyptic number.

It is an amenable number.

882640865 is a deficient number, since it is larger than the sum of its proper divisors (176528179).

882640865 is a wasteful number, since it uses less digits than its factorization.

882640865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176528178.

The product of its (nonzero) digits is 737280, while the sum is 47.

The square root of 882640865 is about 29709.2723741259. The cubic root of 882640865 is about 959.2416120506.

The spelling of 882640865 in words is "eight hundred eighty-two million, six hundred forty thousand, eight hundred sixty-five".