872963869 has 2 divisors, whose sum is σ = 872963870. Its totient is φ = 872963868.

The previous prime is 872963867. The next prime is 872963879. The reversal of 872963869 is 968369278.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 773562969 + 99400900 = 27813^2 + 9970^2 .

It is a cyclic number.

It is not a de Polignac number, because 872963869 - 2¹ = 872963867 is a prime.

It is a super-2 number, since 2×872963869² = 1524131833158898322, which contains 22 as substring.

Together with 872963867, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (872963867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436481934 + 436481935.

It is an arithmetic number, because the mean of its divisors is an integer number (436481935).

Almost surely, 2^872963869 is an apocalyptic number.

It is an amenable number.

872963869 is a deficient number, since it is larger than the sum of its proper divisors (1).

872963869 is an equidigital number, since it uses as much as digits as its factorization.

872963869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7838208, while the sum is 58.

The square root of 872963869 is about 29545.9619745237. The cubic root of 872963869 is about 955.7231145085.

The spelling of 872963869 in words is "eight hundred seventy-two million, nine hundred sixty-three thousand, eight hundred sixty-nine".