871929873 has 32 divisors (see below), whose sum is σ = 1313062400. Its totient is φ = 571753728.

The previous prime is 871929833. The next prime is 871929887. The reversal of 871929873 is 378929178.

It is not a de Polignac number, because 871929873 - 2¹³ = 871921681 is a prime.

It is a super-2 number, since 2×871929873² = 1520523406859592258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (871929823) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 718215 + ... + 719427.

It is an arithmetic number, because the mean of its divisors is an integer number (41033200).

Almost surely, 2^871929873 is an apocalyptic number.

It is an amenable number.

871929873 is a deficient number, since it is larger than the sum of its proper divisors (441132527).

871929873 is a wasteful number, since it uses less digits than its factorization.

871929873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638 (or 1632 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 54.

The square root of 871929873 is about 29528.4586966540. The cubic root of 871929873 is about 955.3456249246.

The spelling of 871929873 in words is "eight hundred seventy-one million, nine hundred twenty-nine thousand, eight hundred seventy-three".