768999459 has 4 divisors (see below), whose sum is σ = 1025332616. Its totient is φ = 512666304.

The previous prime is 768999433. The next prime is 768999463. The reversal of 768999459 is 954999867.

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

It is not a de Polignac number, because 768999459 - 2¹⁵ = 768966691 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 768999459.

It is not an unprimeable number, because it can be changed into a prime (768799459) 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, 128166574 + ... + 128166579.

It is an arithmetic number, because the mean of its divisors is an integer number (256333154).

Almost surely, 2^768999459 is an apocalyptic number.

768999459 is a deficient number, since it is larger than the sum of its proper divisors (256333157).

768999459 is a wasteful number, since it uses less digits than its factorization.

768999459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256333156.

The product of its digits is 44089920, while the sum is 66.

The square root of 768999459 is about 27730.8394932429. The cubic root of 768999459 is about 916.1684770324.

The spelling of 768999459 in words is "seven hundred sixty-eight million, nine hundred ninety-nine thousand, four hundred fifty-nine".