768716357 has 4 divisors (see below), whose sum is σ = 768990156. Its totient is φ = 768442560.

The previous prime is 768716321. The next prime is 768716359. The reversal of 768716357 is 753617867.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 396766561 + 371949796 = 19919^2 + 19286^2 .

It is a cyclic number.

It is not a de Polignac number, because 768716357 - 2²⁴ = 751939141 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 (768716359) 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, 132644 + ... + 138317.

It is an arithmetic number, because the mean of its divisors is an integer number (192247539).

Almost surely, 2^768716357 is an apocalyptic number.

It is an amenable number.

768716357 is a deficient number, since it is larger than the sum of its proper divisors (273799).

768716357 is a wasteful number, since it uses less digits than its factorization.

768716357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273798.

The product of its digits is 1481760, while the sum is 50.

The square root of 768716357 is about 27725.7345619553. The cubic root of 768716357 is about 916.0560361370.

The spelling of 768716357 in words is "seven hundred sixty-eight million, seven hundred sixteen thousand, three hundred fifty-seven".