728802077 has 2 divisors, whose sum is σ = 728802078. Its totient is φ = 728802076.

The previous prime is 728802037. The next prime is 728802079. The reversal of 728802077 is 770208827.

728802077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 374383801 + 354418276 = 19349^2 + 18826^2 .

It is a cyclic number.

It is not a de Polignac number, because 728802077 - 2¹² = 728797981 is a prime.

Together with 728802079, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (728802079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364401038 + 364401039.

It is an arithmetic number, because the mean of its divisors is an integer number (364401039).

Almost surely, 2^728802077 is an apocalyptic number.

It is an amenable number.

728802077 is a deficient number, since it is larger than the sum of its proper divisors (1).

728802077 is an equidigital number, since it uses as much as digits as its factorization.

728802077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87808, while the sum is 41.

The square root of 728802077 is about 26996.3345104479. The cubic root of 728802077 is about 899.9185428335.

The spelling of 728802077 in words is "seven hundred twenty-eight million, eight hundred two thousand, seventy-seven".