768030709 has 4 divisors (see below), whose sum is σ = 813209004. Its totient is φ = 722852416.

The previous prime is 768030691. The next prime is 768030761. The reversal of 768030709 is 907030867.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 907030867 = 1051 ⋅863017.

It can be written as a sum of positive squares in 2 ways, for example, as 428365809 + 339664900 = 20697^2 + 18430^2 .

It is a cyclic number.

It is not a de Polignac number, because 768030709 - 2¹³ = 768022517 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 (768030779) 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, 22589122 + ... + 22589155.

It is an arithmetic number, because the mean of its divisors is an integer number (203302251).

Almost surely, 2^768030709 is an apocalyptic number.

It is an amenable number.

768030709 is a deficient number, since it is larger than the sum of its proper divisors (45178295).

768030709 is a wasteful number, since it uses less digits than its factorization.

768030709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45178294.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 768030709 is about 27713.3669733578. The cubic root of 768030709 is about 915.7835997931.

The spelling of 768030709 in words is "seven hundred sixty-eight million, thirty thousand, seven hundred nine".