769939081 has 2 divisors, whose sum is σ = 769939082. Its totient is φ = 769939080.

The previous prime is 769939069. The next prime is 769939087. The reversal of 769939081 is 180939967.

769939081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 738969856 + 30969225 = 27184^2 + 5565^2 .

It is a cyclic number.

It is not a de Polignac number, because 769939081 - 2²¹ = 767841929 is a prime.

It is a super-2 number, since 2×769939081² = 1185612376902249122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (769939087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384969540 + 384969541.

It is an arithmetic number, because the mean of its divisors is an integer number (384969541).

Almost surely, 2^769939081 is an apocalyptic number.

It is an amenable number.

769939081 is a deficient number, since it is larger than the sum of its proper divisors (1).

769939081 is an equidigital number, since it uses as much as digits as its factorization.

769939081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 734832, while the sum is 52.

The square root of 769939081 is about 27747.7761451256. The cubic root of 769939081 is about 916.5414732533.

The spelling of 769939081 in words is "seven hundred sixty-nine million, nine hundred thirty-nine thousand, eighty-one".