725784 has 16 divisors (see below), whose sum is σ = 1814520. Its totient is φ = 241920.

The previous prime is 725749. The next prime is 725789. The reversal of 725784 is 487527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15097 + ... + 15144.

2⁷²⁵⁷⁸⁴ is an apocalyptic number.

It is an amenable number.

725784 is an abundant number, since it is smaller than the sum of its proper divisors (1088736).

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

725784 is a wasteful number, since it uses less digits than its factorization.

725784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30250 (or 30246 counting only the distinct ones).

The product of its digits is 15680, while the sum is 33.

The square root of 725784 is about 851.9295745541. The cubic root of 725784 is about 89.8674592273.

The spelling of 725784 in words is "seven hundred twenty-five thousand, seven hundred eighty-four".