873000020 has 24 divisors (see below), whose sum is σ = 1834774368. Its totient is φ = 348919200.

The previous prime is 872999999. The next prime is 873000041. The reversal of 873000020 is 20000378.

It is an interprime number because it is at equal distance from previous prime (872999999) and next prime (873000041).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 872999956 and 873000001.

It is a congruent number.

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, 8915 + ... + 42725.

It is an arithmetic number, because the mean of its divisors is an integer number (76448932).

Almost surely, 2^873000020 is an apocalyptic number.

It is an amenable number.

873000020 is an abundant number, since it is smaller than the sum of its proper divisors (961774348).

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

873000020 is a wasteful number, since it uses less digits than its factorization.

873000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35111 (or 35109 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 873000020 is about 29546.5737438370. The cubic root of 873000020 is about 955.7363070627.

Adding to 873000020 its reverse (20000378), we get a palindrome (893000398).

The spelling of 873000020 in words is "eight hundred seventy-three million, twenty", and thus it is an aban number.