725854 has 4 divisors (see below), whose sum is σ = 1088784. Its totient is φ = 362926.

The previous prime is 725827. The next prime is 725861. The reversal of 725854 is 458527.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 458527 = 19 ⋅24133.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

725854 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 181462 + ... + 181465.

It is an arithmetic number, because the mean of its divisors is an integer number (272196).

2⁷²⁵⁸⁵⁴ is an apocalyptic number.

725854 is a deficient number, since it is larger than the sum of its proper divisors (362930).

725854 is a wasteful number, since it uses less digits than its factorization.

725854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362929.

The product of its digits is 11200, while the sum is 31.

The square root of 725854 is about 851.9706567717. The cubic root of 725854 is about 89.8703482962.

The spelling of 725854 in words is "seven hundred twenty-five thousand, eight hundred fifty-four".