768648943 has 4 divisors (see below), whose sum is σ = 768833928. Its totient is φ = 768463960.

The previous prime is 768648929. The next prime is 768648967. The reversal of 768648943 is 349846867.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 349846867 = 19 ⋅18412993.

It is a cyclic number.

It is not a de Polignac number, because 768648943 - 2²⁹ = 231778031 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 (768648913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86113 + ... + 94618.

It is an arithmetic number, because the mean of its divisors is an integer number (192208482).

Almost surely, 2^768648943 is an apocalyptic number.

768648943 is a deficient number, since it is larger than the sum of its proper divisors (184985).

768648943 is a wasteful number, since it uses less digits than its factorization.

768648943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184984.

The product of its digits is 6967296, while the sum is 55.

The square root of 768648943 is about 27724.5188055627. The cubic root of 768648943 is about 916.0292569458.

The spelling of 768648943 in words is "seven hundred sixty-eight million, six hundred forty-eight thousand, nine hundred forty-three".