725983 has 2 divisors, whose sum is σ = 725984. Its totient is φ = 725982.

The previous prime is 725981. The next prime is 725993. The reversal of 725983 is 389527.

It is a weak prime.

It is an emirp because it is prime and its reverse (389527) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 725983 - 2¹ = 725981 is a prime.

Together with 725981, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362991 + 362992.

It is an arithmetic number, because the mean of its divisors is an integer number (362992).

2⁷²⁵⁹⁸³ is an apocalyptic number.

725983 is a deficient number, since it is larger than the sum of its proper divisors (1).

725983 is an equidigital number, since it uses as much as digits as its factorization.

725983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 34.

The square root of 725983 is about 852.0463602410. The cubic root of 725983 is about 89.8756719509.

The spelling of 725983 in words is "seven hundred twenty-five thousand, nine hundred eighty-three".