766927673 has 6 divisors (see below), whose sum is σ = 786091182. Its totient is φ = 748220480.

The previous prime is 766927639. The next prime is 766927699. The reversal of 766927673 is 376729667.

It can be written as a sum of positive squares in 3 ways, for example, as 204146944 + 562780729 = 14288^2 + 23723^2 .

It is not a de Polignac number, because 766927673 - 2¹⁰ = 766926649 is a prime.

It is a super-2 number, since 2×766927673² = 1176356111226389858, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (766927873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 226436 + ... + 229797.

It is an arithmetic number, because the mean of its divisors is an integer number (131015197).

Almost surely, 2^766927673 is an apocalyptic number.

It is an amenable number.

766927673 is a deficient number, since it is larger than the sum of its proper divisors (19163509).

766927673 is an equidigital number, since it uses as much as digits as its factorization.

766927673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456315 (or 456274 counting only the distinct ones).

The product of its digits is 4000752, while the sum is 53.

The square root of 766927673 is about 27693.4590291643. The cubic root of 766927673 is about 915.3449774664.

The spelling of 766927673 in words is "seven hundred sixty-six million, nine hundred twenty-seven thousand, six hundred seventy-three".