876652821 has 32 divisors (see below), whose sum is σ = 1500163200. Its totient is φ = 500048640.

The previous prime is 876652811. The next prime is 876652823. The reversal of 876652821 is 128256678.

It is a de Polignac number, because none of the positive numbers 2^k-876652821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (876652823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81766 + ... + 91863.

It is an arithmetic number, because the mean of its divisors is an integer number (46880100).

Almost surely, 2^876652821 is an apocalyptic number.

It is an amenable number.

876652821 is a deficient number, since it is larger than the sum of its proper divisors (623510379).

876652821 is a wasteful number, since it uses less digits than its factorization.

876652821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173666 (or 173660 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 876652821 is about 29608.3235087703. The cubic root of 876652821 is about 957.0674474137.

The spelling of 876652821 in words is "eight hundred seventy-six million, six hundred fifty-two thousand, eight hundred twenty-one".