725827 has 2 divisors, whose sum is σ = 725828. Its totient is φ = 725826.

The previous prime is 725807. The next prime is 725861. The reversal of 725827 is 728527.

It is a weak prime.

It is an emirp because it is prime and its reverse (728527) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-725827 is a prime.

It is not a weakly prime, because it can be changed into another prime (725807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362913 + 362914.

It is an arithmetic number, because the mean of its divisors is an integer number (362914).

725827 is a Friedman number, since it can be written as 852^2-77, using all its digits and the basic arithmetic operations.

2⁷²⁵⁸²⁷ is an apocalyptic number.

725827 is a deficient number, since it is larger than the sum of its proper divisors (1).

725827 is an equidigital number, since it uses as much as digits as its factorization.

725827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7840, while the sum is 31.

The square root of 725827 is about 851.9548110082. The cubic root of 725827 is about 89.8692339630.

The spelling of 725827 in words is "seven hundred twenty-five thousand, eight hundred twenty-seven".