766705001 has 2 divisors, whose sum is σ = 766705002. Its totient is φ = 766705000.

The previous prime is 766704949. The next prime is 766705021. The reversal of 766705001 is 100507667.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 561642601 + 205062400 = 23699^2 + 14320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-766705001 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (766705021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383352500 + 383352501.

It is an arithmetic number, because the mean of its divisors is an integer number (383352501).

Almost surely, 2^766705001 is an apocalyptic number.

It is an amenable number.

766705001 is a deficient number, since it is larger than the sum of its proper divisors (1).

766705001 is an equidigital number, since it uses as much as digits as its factorization.

766705001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 766705001 is about 27689.4384377871. The cubic root of 766705001 is about 915.2563809215.

The spelling of 766705001 in words is "seven hundred sixty-six million, seven hundred five thousand, one".