769490129 has 2 divisors, whose sum is σ = 769490130. Its totient is φ = 769490128.

The previous prime is 769490107. The next prime is 769490149. The reversal of 769490129 is 921094967.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 727758529 + 41731600 = 26977^2 + 6460^2 .

It is a cyclic number.

It is not a de Polignac number, because 769490129 - 2²⁴ = 752712913 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (769490149) 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, 384745064 + 384745065.

It is an arithmetic number, because the mean of its divisors is an integer number (384745065).

Almost surely, 2^769490129 is an apocalyptic number.

It is an amenable number.

769490129 is a deficient number, since it is larger than the sum of its proper divisors (1).

769490129 is an equidigital number, since it uses as much as digits as its factorization.

769490129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 769490129 is about 27739.6850919400. The cubic root of 769490129 is about 916.3632932984.

The spelling of 769490129 in words is "seven hundred sixty-nine million, four hundred ninety thousand, one hundred twenty-nine".