729559872 has 196 divisors, whose sum is σ = 2287605280. Its totient is φ = 230107392.

The previous prime is 729559871. The next prime is 729559889. The reversal of 729559872 is 278955927.

729559872 is a `hidden beast` number, since 7 + 2 + 9 + 559 + 87 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729559871) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 886053 + ... + 886875.

Almost surely, 2^729559872 is an apocalyptic number.

729559872 is a gapful number since it is divisible by the number (72) 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 729559872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1143802640).

729559872 is an abundant number, since it is smaller than the sum of its proper divisors (1558045408).

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

729559872 is an equidigital number, since it uses as much as digits as its factorization.

729559872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872 (or 847 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 54.

The square root of 729559872 is about 27010.3660101080. The cubic root of 729559872 is about 900.2303410428.

The spelling of 729559872 in words is "seven hundred twenty-nine million, five hundred fifty-nine thousand, eight hundred seventy-two".