676072261 has 2 divisors, whose sum is σ = 676072262. Its totient is φ = 676072260.

The previous prime is 676072253. The next prime is 676072289. The reversal of 676072261 is 162270676.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 503149761 + 172922500 = 22431^2 + 13150^2 .

It is a cyclic number.

It is not a de Polignac number, because 676072261 - 2³ = 676072253 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 676072261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (676072291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338036130 + 338036131.

It is an arithmetic number, because the mean of its divisors is an integer number (338036131).

Almost surely, 2^676072261 is an apocalyptic number.

It is an amenable number.

676072261 is a deficient number, since it is larger than the sum of its proper divisors (1).

676072261 is an equidigital number, since it uses as much as digits as its factorization.

676072261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 676072261 is about 26001.3895974811. The cubic root of 676072261 is about 877.6695661253.

The spelling of 676072261 in words is "six hundred seventy-six million, seventy-two thousand, two hundred sixty-one".