771690001 has 2 divisors, whose sum is σ = 771690002. Its totient is φ = 771690000.

The previous prime is 771689981. The next prime is 771690013. The reversal of 771690001 is 100096177.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 407070976 + 364619025 = 20176^2 + 19095^2 .

It is a cyclic number.

It is not a de Polignac number, because 771690001 - 2⁹ = 771689489 is a prime.

It is not a weakly prime, because it can be changed into another prime (771690041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385845000 + 385845001.

It is an arithmetic number, because the mean of its divisors is an integer number (385845001).

Almost surely, 2^771690001 is an apocalyptic number.

It is an amenable number.

771690001 is a deficient number, since it is larger than the sum of its proper divisors (1).

771690001 is an equidigital number, since it uses as much as digits as its factorization.

771690001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2646, while the sum is 31.

The square root of 771690001 is about 27779.3088646928. The cubic root of 771690001 is about 917.2357168563.

The spelling of 771690001 in words is "seven hundred seventy-one million, six hundred ninety thousand, one".