766663073 has 16 divisors (see below), whose sum is σ = 856106496. Its totient is φ = 680634240.

The previous prime is 766663063. The next prime is 766663087. The reversal of 766663073 is 370366667.

766663073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 766663073 - 2⁴ = 766663057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (766663033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127061 + ... + 132957.

It is an arithmetic number, because the mean of its divisors is an integer number (53506656).

Almost surely, 2^766663073 is an apocalyptic number.

It is an amenable number.

766663073 is a deficient number, since it is larger than the sum of its proper divisors (89443423).

766663073 is a wasteful number, since it uses less digits than its factorization.

766663073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6184.

The product of its (nonzero) digits is 571536, while the sum is 44.

The square root of 766663073 is about 27688.6813156568. The cubic root of 766663073 is about 915.2396967257.

The spelling of 766663073 in words is "seven hundred sixty-six million, six hundred sixty-three thousand, seventy-three".