724660872 has 32 divisors (see below), whose sum is σ = 1951010880. Its totient is φ = 222972480.

The previous prime is 724660813. The next prime is 724660877. The reversal of 724660872 is 278066427.

It is not an unprimeable number, because it can be changed into a prime (724660877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1161004 + ... + 1161627.

It is an arithmetic number, because the mean of its divisors is an integer number (60969090).

Almost surely, 2^724660872 is an apocalyptic number.

It is an amenable number.

724660872 is an abundant number, since it is smaller than the sum of its proper divisors (1226350008).

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

724660872 is a wasteful number, since it uses less digits than its factorization.

724660872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2322653 (or 2322649 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 42.

The square root of 724660872 is about 26919.5258502077. The cubic root of 724660872 is about 898.2107960290.

The spelling of 724660872 in words is "seven hundred twenty-four million, six hundred sixty thousand, eight hundred seventy-two".