728656367 has 2 divisors, whose sum is σ = 728656368. Its totient is φ = 728656366.

The previous prime is 728656361. The next prime is 728656381. The reversal of 728656367 is 763656827.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 728656367 - 2⁶ = 728656303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (728656361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364328183 + 364328184.

It is an arithmetic number, because the mean of its divisors is an integer number (364328184).

Almost surely, 2^728656367 is an apocalyptic number.

728656367 is a deficient number, since it is larger than the sum of its proper divisors (1).

728656367 is an equidigital number, since it uses as much as digits as its factorization.

728656367 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2540160, while the sum is 50.

The square root of 728656367 is about 26993.6356758403. The cubic root of 728656367 is about 899.8585650175.

The spelling of 728656367 in words is "seven hundred twenty-eight million, six hundred fifty-six thousand, three hundred sixty-seven".