768871305 has 32 divisors (see below), whose sum is σ = 1371352320. Its totient is φ = 408723840.

The previous prime is 768871273. The next prime is 768871307. The reversal of 768871305 is 503178867.

It is not a de Polignac number, because 768871305 - 2⁵ = 768871273 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (768871307) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32829 + ... + 51141.

It is an arithmetic number, because the mean of its divisors is an integer number (42854760).

Almost surely, 2^768871305 is an apocalyptic number.

It is an amenable number.

768871305 is a deficient number, since it is larger than the sum of its proper divisors (602481015).

768871305 is a wasteful number, since it uses less digits than its factorization.

768871305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18638 (or 18632 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 768871305 is about 27728.5287204352. The cubic root of 768871305 is about 916.1175809507.

The spelling of 768871305 in words is "seven hundred sixty-eight million, eight hundred seventy-one thousand, three hundred five".