869721300 has 216 divisors, whose sum is σ = 3231557056. Its totient is φ = 198754560.

The previous prime is 869721289. The next prime is 869721317. The reversal of 869721300 is 3127968.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 167544 + ... + 172656.

Almost surely, 2^869721300 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 869721300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1615778528).

869721300 is an abundant number, since it is smaller than the sum of its proper divisors (2361835756).

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

869721300 is a wasteful number, since it uses less digits than its factorization.

869721300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5149 (or 5130 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 869721300 is about 29491.0376216233. The cubic root of 869721300 is about 954.5383220246.

The spelling of 869721300 in words is "eight hundred sixty-nine million, seven hundred twenty-one thousand, three hundred".