872107500 has 270 divisors, whose sum is σ = 2888084892. Its totient is φ = 204600000.

The previous prime is 872107499. The next prime is 872107507. The reversal of 872107500 is 5701278.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (872107507) by changing a digit.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 28132485 + ... + 28132515.

Almost surely, 2^872107500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 872107500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1444042446).

872107500 is an abundant number, since it is smaller than the sum of its proper divisors (2015977392).

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

872107500 is a wasteful number, since it uses less digits than its factorization.

872107500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 52 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 872107500 is about 29531.4662690494. The cubic root of 872107500 is about 955.4104939241.

Adding to 872107500 its reverse (5701278), we get a palindrome (877808778).

The spelling of 872107500 in words is "eight hundred seventy-two million, one hundred seven thousand, five hundred".