769551061 has 2 divisors, whose sum is σ = 769551062. Its totient is φ = 769551060.

The previous prime is 769551001. The next prime is 769551071. The reversal of 769551061 is 160155967.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 442302961 + 327248100 = 21031^2 + 18090^2 .

It is an emirp because it is prime and its reverse (160155967) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 769551061 - 2²⁵ = 735996629 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (769551001) 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, 384775530 + 384775531.

It is an arithmetic number, because the mean of its divisors is an integer number (384775531).

Almost surely, 2^769551061 is an apocalyptic number.

It is an amenable number.

769551061 is a deficient number, since it is larger than the sum of its proper divisors (1).

769551061 is an equidigital number, since it uses as much as digits as its factorization.

769551061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56700, while the sum is 40.

The square root of 769551061 is about 27740.7833523136. The cubic root of 769551061 is about 916.3874800391.

The spelling of 769551061 in words is "seven hundred sixty-nine million, five hundred fifty-one thousand, sixty-one".