966997877 has 2 divisors, whose sum is σ = 966997878. Its totient is φ = 966997876.

The previous prime is 966997817. The next prime is 966997897. The reversal of 966997877 is 778799669.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 810597841 + 156400036 = 28471^2 + 12506^2 .

It is a cyclic number.

It is not a de Polignac number, because 966997877 - 2¹⁰ = 966996853 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (966997807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 483498938 + 483498939.

It is an arithmetic number, because the mean of its divisors is an integer number (483498939).

Almost surely, 2^966997877 is an apocalyptic number.

It is an amenable number.

966997877 is a deficient number, since it is larger than the sum of its proper divisors (1).

966997877 is an equidigital number, since it uses as much as digits as its factorization.

966997877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72013536, while the sum is 68.

The square root of 966997877 is about 31096.5894753749. The cubic root of 966997877 is about 988.8760079742.

The spelling of 966997877 in words is "nine hundred sixty-six million, nine hundred ninety-seven thousand, eight hundred seventy-seven".