871963652 has 24 divisors (see below), whose sum is σ = 1761911424. Its totient is φ = 369844992.

The previous prime is 871963639. The next prime is 871963667. The reversal of 871963652 is 256369178.

It is a super-2 number, since 2×871963652² = 1520641220818354208, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 871963597 and 871963606.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157808 + ... + 163239.

It is an arithmetic number, because the mean of its divisors is an integer number (73412976).

Almost surely, 2^871963652 is an apocalyptic number.

It is an amenable number.

871963652 is an abundant number, since it is smaller than the sum of its proper divisors (889947772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

871963652 is a wasteful number, since it uses less digits than its factorization.

871963652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321155 (or 321153 counting only the distinct ones).

The product of its digits is 544320, while the sum is 47.

The square root of 871963652 is about 29529.0306647543. The cubic root of 871963652 is about 955.3579616213.

The spelling of 871963652 in words is "eight hundred seventy-one million, nine hundred sixty-three thousand, six hundred fifty-two".