723425856 has 112 divisors (see below), whose sum is σ = 1953304704. Its totient is φ = 236261376.

The previous prime is 723425809. The next prime is 723425869. The reversal of 723425856 is 658524327.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3104716 + ... + 3104948.

Almost surely, 2^723425856 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 723425856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (976652352).

723425856 is an abundant number, since it is smaller than the sum of its proper divisors (1229878848).

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

723425856 is a wasteful number, since it uses less digits than its factorization.

723425856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508 (or 498 counting only the distinct ones).

The product of its digits is 403200, while the sum is 42.

The square root of 723425856 is about 26896.5770312878. The cubic root of 723425856 is about 897.7002420449.

The spelling of 723425856 in words is "seven hundred twenty-three million, four hundred twenty-five thousand, eight hundred fifty-six".