766531117 has 16 divisors (see below), whose sum is σ = 888966720. Its totient is φ = 653616000.

The previous prime is 766531111. The next prime is 766531147. The reversal of 766531117 is 711135667.

766531117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 766531117 - 2²³ = 758142509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766531111) 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, 2953 + ... + 39265.

It is an arithmetic number, because the mean of its divisors is an integer number (55560420).

Almost surely, 2^766531117 is an apocalyptic number.

It is an amenable number.

766531117 is a deficient number, since it is larger than the sum of its proper divisors (122435603).

766531117 is a wasteful number, since it uses less digits than its factorization.

766531117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36444.

The product of its digits is 26460, while the sum is 37.

The square root of 766531117 is about 27686.2983621863. The cubic root of 766531117 is about 915.1871841756.

The spelling of 766531117 in words is "seven hundred sixty-six million, five hundred thirty-one thousand, one hundred seventeen".