725088437 has 8 divisors (see below), whose sum is σ = 768027096. Its totient is φ = 682181632.

The previous prime is 725088407. The next prime is 725088439. The reversal of 725088437 is 734880527.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 394975876 + 330112561 = 19874^2 + 18169^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 725088437 - 2²⁰ = 724039861 is a prime.

It is a super-2 number, since 2×725088437² = 1051506482942205938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725088439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51773 + ... + 64269.

It is an arithmetic number, because the mean of its divisors is an integer number (96003387).

Almost surely, 2^725088437 is an apocalyptic number.

It is an amenable number.

725088437 is a deficient number, since it is larger than the sum of its proper divisors (42938659).

725088437 is a wasteful number, since it uses less digits than its factorization.

725088437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15927.

The product of its (nonzero) digits is 376320, while the sum is 44.

The square root of 725088437 is about 26927.4662194570. The cubic root of 725088437 is about 898.3874156531.

The spelling of 725088437 in words is "seven hundred twenty-five million, eighty-eight thousand, four hundred thirty-seven".