725658 has 8 divisors (see below), whose sum is σ = 1451328. Its totient is φ = 241884.

The previous prime is 725653. The next prime is 725663. The reversal of 725658 is 856527.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (725653) and next prime (725663).

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

725658 is an admirable number.

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

It is not an unprimeable number, because it can be changed into a prime (725653) 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, 60466 + ... + 60477.

It is an arithmetic number, because the mean of its divisors is an integer number (181416).

2⁷²⁵⁶⁵⁸ is an apocalyptic number.

725658 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

725658 is a wasteful number, since it uses less digits than its factorization.

725658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120948.

The product of its digits is 16800, while the sum is 33.

The square root of 725658 is about 851.8556215698. The cubic root of 725658 is about 89.8622584351.

The spelling of 725658 in words is "seven hundred twenty-five thousand, six hundred fifty-eight".