966423691 has 2 divisors, whose sum is σ = 966423692. Its totient is φ = 966423690.

The previous prime is 966423673. The next prime is 966423721. The reversal of 966423691 is 196324669.

It is a weak prime.

It is an emirp because it is prime and its reverse (196324669) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 966423691 - 2⁵ = 966423659 is a prime.

It is not a weakly prime, because it can be changed into another prime (966423631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 483211845 + 483211846.

It is an arithmetic number, because the mean of its divisors is an integer number (483211846).

Almost surely, 2^966423691 is an apocalyptic number.

966423691 is a deficient number, since it is larger than the sum of its proper divisors (1).

966423691 is an equidigital number, since it uses as much as digits as its factorization.

966423691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 419904, while the sum is 46.

The square root of 966423691 is about 31087.3558058578. The cubic root of 966423691 is about 988.6802436080.

The spelling of 966423691 in words is "nine hundred sixty-six million, four hundred twenty-three thousand, six hundred ninety-one".