725439718 has 8 divisors (see below), whose sum is σ = 1088677080. Its totient is φ = 362547360.

The previous prime is 725439707. The next prime is 725439719. The reversal of 725439718 is 817934527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725439719) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 80928 + ... + 89443.

It is an arithmetic number, because the mean of its divisors is an integer number (136084635).

Almost surely, 2^725439718 is an apocalyptic number.

725439718 is a deficient number, since it is larger than the sum of its proper divisors (363237362).

725439718 is a wasteful number, since it uses less digits than its factorization.

725439718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172502.

The product of its digits is 423360, while the sum is 46.

The square root of 725439718 is about 26933.9881562312. The cubic root of 725439718 is about 898.5324717427.

The spelling of 725439718 in words is "seven hundred twenty-five million, four hundred thirty-nine thousand, seven hundred eighteen".