722077 has 2 divisors, whose sum is σ = 722078. Its totient is φ = 722076.

The previous prime is 722069. The next prime is 722093. The reversal of 722077 is 770227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 436921 + 285156 = 661^2 + 534^2 .

It is an emirp because it is prime and its reverse (770227) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 722077 - 2³ = 722069 is a prime.

722077 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361038 + 361039.

It is an arithmetic number, because the mean of its divisors is an integer number (361039).

2⁷²²⁰⁷⁷ is an apocalyptic number.

It is an amenable number.

722077 is a deficient number, since it is larger than the sum of its proper divisors (1).

722077 is an equidigital number, since it uses as much as digits as its factorization.

722077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1372, while the sum is 25.

The square root of 722077 is about 849.7511400404. The cubic root of 722077 is about 89.7141962437.

The spelling of 722077 in words is "seven hundred twenty-two thousand, seventy-seven", and thus it is an iban number.