873011520 has 336 divisors, whose sum is σ = 3173089920. Its totient is φ = 228427776.

The previous prime is 873011519. The next prime is 873011549. The reversal of 873011520 is 25110378.

It is a super-2 number, since 2×873011520² = 1524298228105420800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8009226 + ... + 8009334.

It is an arithmetic number, because the mean of its divisors is an integer number (9443720).

Almost surely, 2^873011520 is an apocalyptic number.

873011520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 873011520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1586544960).

873011520 is an abundant number, since it is smaller than the sum of its proper divisors (2300078400).

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

873011520 is a wasteful number, since it uses less digits than its factorization.

873011520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 873011520 is about 29546.7683512089. The cubic root of 873011520 is about 955.7405036717.

Adding to 873011520 its reverse (25110378), we get a palindrome (898121898).

The spelling of 873011520 in words is "eight hundred seventy-three million, eleven thousand, five hundred twenty".