873641020 has 24 divisors (see below), whose sum is σ = 2096738784. Its totient is φ = 299534016.

The previous prime is 873641017. The next prime is 873641023. The reversal of 873641020 is 20146378.

It is an interprime number because it is at equal distance from previous prime (873641017) and next prime (873641023).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (873641023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3120007 + ... + 3120286.

It is an arithmetic number, because the mean of its divisors is an integer number (87364116).

Almost surely, 2^873641020 is an apocalyptic number.

It is an amenable number.

873641020 is an abundant number, since it is smaller than the sum of its proper divisors (1223097764).

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

873641020 is a wasteful number, since it uses less digits than its factorization.

873641020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6240309 (or 6240307 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 873641020 is about 29557.4190348210. The cubic root of 873641020 is about 955.9701661996.

Adding to 873641020 its reverse (20146378), we get a palindrome (893787398).

The spelling of 873641020 in words is "eight hundred seventy-three million, six hundred forty-one thousand, twenty".