766540873 has 8 divisors (see below), whose sum is σ = 880634880. Its totient is φ = 653593920.

The previous prime is 766540799. The next prime is 766540889. The reversal of 766540873 is 378045667.

766540873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 766540873 - 2¹³ = 766532681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (766540273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285328 + ... + 288001.

It is an arithmetic number, because the mean of its divisors is an integer number (110079360).

Almost surely, 2^766540873 is an apocalyptic number.

It is an amenable number.

766540873 is a deficient number, since it is larger than the sum of its proper divisors (114094007).

766540873 is a wasteful number, since it uses less digits than its factorization.

766540873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573527.

The product of its (nonzero) digits is 846720, while the sum is 46.

The square root of 766540873 is about 27686.4745498592. The cubic root of 766540873 is about 915.1910668309.

The spelling of 766540873 in words is "seven hundred sixty-six million, five hundred forty thousand, eight hundred seventy-three".