966397261 has 2 divisors, whose sum is σ = 966397262. Its totient is φ = 966397260.

The previous prime is 966397253. The next prime is 966397273. The reversal of 966397261 is 162793669.

966397261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 675012361 + 291384900 = 25981^2 + 17070^2 .

It is an emirp because it is prime and its reverse (162793669) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 966397261 - 2³ = 966397253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (966397231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 483198630 + 483198631.

It is an arithmetic number, because the mean of its divisors is an integer number (483198631).

Almost surely, 2^966397261 is an apocalyptic number.

It is an amenable number.

966397261 is a deficient number, since it is larger than the sum of its proper divisors (1).

966397261 is an equidigital number, since it uses as much as digits as its factorization.

966397261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 734832, while the sum is 49.

The square root of 966397261 is about 31086.9307105092. The cubic root of 966397261 is about 988.6712306332.

The spelling of 966397261 in words is "nine hundred sixty-six million, three hundred ninety-seven thousand, two hundred sixty-one".