871206507 has 12 divisors (see below), whose sum is σ = 1270870224. Its totient is φ = 575053200.

The previous prime is 871206503. The next prime is 871206509. The reversal of 871206507 is 705602178.

It is not a de Polignac number, because 871206507 - 2² = 871206503 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (871206503) 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 in 11 ways as a sum of consecutive naturals, for example, 478303 + ... + 480120.

It is an arithmetic number, because the mean of its divisors is an integer number (105905852).

Almost surely, 2^871206507 is an apocalyptic number.

871206507 is a deficient number, since it is larger than the sum of its proper divisors (399663717).

871206507 is a wasteful number, since it uses less digits than its factorization.

871206507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958530 (or 958527 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 871206507 is about 29516.2075307787. The cubic root of 871206507 is about 955.0813621826.

The spelling of 871206507 in words is "eight hundred seventy-one million, two hundred six thousand, five hundred seven".