871215052 has 24 divisors (see below), whose sum is σ = 1532464416. Its totient is φ = 433375488.

The previous prime is 871215049. The next prime is 871215053. The reversal of 871215052 is 250512178.

It is not an unprimeable number, because it can be changed into a prime (871215053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1172193 + ... + 1172935.

It is an arithmetic number, because the mean of its divisors is an integer number (63852684).

Almost surely, 2^871215052 is an apocalyptic number.

It is an amenable number.

871215052 is a deficient number, since it is larger than the sum of its proper divisors (661249364).

871215052 is a wasteful number, since it uses less digits than its factorization.

871215052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857 (or 1855 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 871215052 is about 29516.3522814050. The cubic root of 871215052 is about 955.0844847272.

The spelling of 871215052 in words is "eight hundred seventy-one million, two hundred fifteen thousand, fifty-two".