1006766777 has 2 divisors, whose sum is σ = 1006766778. Its totient is φ = 1006766776.

The previous prime is 1006766759. The next prime is 1006766797. The reversal of 1006766777 is 7776676001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 657973801 + 348792976 = 25651^2 + 18676^2 .

It is an emirp because it is prime and its reverse (7776676001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1006766777 - 2¹² = 1006762681 is a prime.

It is not a weakly prime, because it can be changed into another prime (1006766797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 503383388 + 503383389.

It is an arithmetic number, because the mean of its divisors is an integer number (503383389).

Almost surely, 2^1006766777 is an apocalyptic number.

It is an amenable number.

1006766777 is a deficient number, since it is larger than the sum of its proper divisors (1).

1006766777 is an equidigital number, since it uses as much as digits as its factorization.

1006766777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 518616, while the sum is 47.

The square root of 1006766777 is about 31729.5883521990. The cubic root of 1006766777 is about 1002.2505236770.

The spelling of 1006766777 in words is "one billion, six million, seven hundred sixty-six thousand, seven hundred seventy-seven".