729703872 has 42 divisors (see below), whose sum is σ = 2091566048. Its totient is φ = 243234432.

The previous prime is 729703867. The next prime is 729703883. The reversal of 729703872 is 278307927.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 632848 + ... + 633999.

Almost surely, 2^729703872 is an apocalyptic number.

729703872 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

729703872 is an abundant number, since it is smaller than the sum of its proper divisors (1361862176).

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

729703872 is a wasteful number, since it uses less digits than its factorization.

729703872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266865 (or 1266852 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 45.

The square root of 729703872 is about 27013.0315218415. The cubic root of 729703872 is about 900.2895660842.

The spelling of 729703872 in words is "seven hundred twenty-nine million, seven hundred three thousand, eight hundred seventy-two".