725981716 has 24 divisors (see below), whose sum is σ = 1357304480. Its totient is φ = 338751072.

The previous prime is 725981579. The next prime is 725981717. The reversal of 725981716 is 617189527.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725981717) 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, 66195 + ... + 76378.

Almost surely, 2^725981716 is an apocalyptic number.

725981716 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

725981716 is a deficient number, since it is larger than the sum of its proper divisors (631322764).

725981716 is a wasteful number, since it uses less digits than its factorization.

725981716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142663 (or 142661 counting only the distinct ones).

The product of its digits is 211680, while the sum is 46.

The square root of 725981716 is about 26944.0478770358. The cubic root of 725981716 is about 898.7561896506.

The spelling of 725981716 in words is "seven hundred twenty-five million, nine hundred eighty-one thousand, seven hundred sixteen".