766604801 has 2 divisors, whose sum is σ = 766604802. Its totient is φ = 766604800.

The previous prime is 766604777. The next prime is 766604807. The reversal of 766604801 is 108406667.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 444366400 + 322238401 = 21080^2 + 17951^2 .

It is an emirp because it is prime and its reverse (108406667) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 766604801 - 2¹⁸ = 766342657 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (766604807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383302400 + 383302401.

It is an arithmetic number, because the mean of its divisors is an integer number (383302401).

Almost surely, 2^766604801 is an apocalyptic number.

It is an amenable number.

766604801 is a deficient number, since it is larger than the sum of its proper divisors (1).

766604801 is an equidigital number, since it uses as much as digits as its factorization.

766604801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 766604801 is about 27687.6290245301. The cubic root of 766604801 is about 915.2165078349.

The spelling of 766604801 in words is "seven hundred sixty-six million, six hundred four thousand, eight hundred one".