769666 has 12 divisors (see below), whose sum is σ = 1185282. Its totient is φ = 374816.

The previous prime is 769663. The next prime is 769673. The reversal of 769666 is 666967.

It can be written as a sum of positive squares in 3 ways, for example, as 758641 + 11025 = 871^2 + 105^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (769661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5550 + ... + 5686.

2⁷⁶⁹⁶⁶⁶ is an apocalyptic number.

769666 is a deficient number, since it is larger than the sum of its proper divisors (415616).

769666 is a wasteful number, since it uses less digits than its factorization.

769666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245 (or 192 counting only the distinct ones).

The product of its digits is 81648, while the sum is 40.

The square root of 769666 is about 877.3061039341. The cubic root of 769666 is about 91.6433101191.

The spelling of 769666 in words is "seven hundred sixty-nine thousand, six hundred sixty-six".