872907129 has 6 divisors (see below), whose sum is σ = 1260865866. Its totient is φ = 581938080.

The previous prime is 872907127. The next prime is 872907131. The reversal of 872907129 is 921709278.

It is an interprime number because it is at equal distance from previous prime (872907127) and next prime (872907131).

It can be written as a sum of positive squares in only one way, i.e., 871607529 + 1299600 = 29523^2 + 1140^2 .

It is not a de Polignac number, because 872907129 - 2¹ = 872907127 is a prime.

It is not an unprimeable number, because it can be changed into a prime (872907121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48494832 + ... + 48494849.

It is an arithmetic number, because the mean of its divisors is an integer number (210144311).

Almost surely, 2^872907129 is an apocalyptic number.

It is an amenable number.

872907129 is a deficient number, since it is larger than the sum of its proper divisors (387958737).

872907129 is a wasteful number, since it uses less digits than its factorization.

872907129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96989687 (or 96989684 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 872907129 is about 29545.0017600270. The cubic root of 872907129 is about 955.7024076933.

The spelling of 872907129 in words is "eight hundred seventy-two million, nine hundred seven thousand, one hundred twenty-nine".