769655669 has 2 divisors, whose sum is σ = 769655670. Its totient is φ = 769655668.

The previous prime is 769655651. The next prime is 769655681. The reversal of 769655669 is 966556967.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 726949444 + 42706225 = 26962^2 + 6535^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-769655669 is a prime.

It is a super-2 number, since 2×769655669² = 1184739697647675122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (769655639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384827834 + 384827835.

It is an arithmetic number, because the mean of its divisors is an integer number (384827835).

Almost surely, 2^769655669 is an apocalyptic number.

It is an amenable number.

769655669 is a deficient number, since it is larger than the sum of its proper divisors (1).

769655669 is an equidigital number, since it uses as much as digits as its factorization.

769655669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18370800, while the sum is 59.

The square root of 769655669 is about 27742.6687432914. The cubic root of 769655669 is about 916.4290008352.

The spelling of 769655669 in words is "seven hundred sixty-nine million, six hundred fifty-five thousand, six hundred sixty-nine".