725735836 has 48 divisors (see below), whose sum is σ = 1546868736. Its totient is φ = 291164544.

The previous prime is 725735827. The next prime is 725735863. The reversal of 725735836 is 638537527.

725735836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18280 + ... + 42256.

It is an arithmetic number, because the mean of its divisors is an integer number (32226432).

Almost surely, 2^725735836 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 725735836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (773434368).

725735836 is an abundant number, since it is smaller than the sum of its proper divisors (821132900).

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

725735836 is a wasteful number, since it uses less digits than its factorization.

725735836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24058 (or 24056 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 46.

The square root of 725735836 is about 26939.4847018275. The cubic root of 725735836 is about 898.6547127492.

The spelling of 725735836 in words is "seven hundred twenty-five million, seven hundred thirty-five thousand, eight hundred thirty-six".