872159069 has 2 divisors, whose sum is σ = 872159070. Its totient is φ = 872159068.

The previous prime is 872159059. The next prime is 872159077. The reversal of 872159069 is 960951278.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 545923225 + 326235844 = 23365^2 + 18062^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-872159069 is a prime.

It is a super-2 number, since 2×872159069² = 1521322883277893522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (872159059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436079534 + 436079535.

It is an arithmetic number, because the mean of its divisors is an integer number (436079535).

Almost surely, 2^872159069 is an apocalyptic number.

It is an amenable number.

872159069 is a deficient number, since it is larger than the sum of its proper divisors (1).

872159069 is an equidigital number, since it uses as much as digits as its factorization.

872159069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 47.

The square root of 872159069 is about 29532.3393756743. The cubic root of 872159069 is about 955.4293251624.

The spelling of 872159069 in words is "eight hundred seventy-two million, one hundred fifty-nine thousand, sixty-nine".