768936399 has 16 divisors (see below), whose sum is σ = 1278232320. Its totient is φ = 399447360.

The previous prime is 768936397. The next prime is 768936409. The reversal of 768936399 is 993639867.

It is a happy number.

It is not a de Polignac number, because 768936399 - 2¹ = 768936397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768936397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1664134 + ... + 1664595.

It is an arithmetic number, because the mean of its divisors is an integer number (79889520).

Almost surely, 2^768936399 is an apocalyptic number.

768936399 is a deficient number, since it is larger than the sum of its proper divisors (509295921).

768936399 is a wasteful number, since it uses less digits than its factorization.

768936399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3328750.

The product of its digits is 13226976, while the sum is 60.

The square root of 768936399 is about 27729.7024686526. The cubic root of 768936399 is about 916.1434335976.

The spelling of 768936399 in words is "seven hundred sixty-eight million, nine hundred thirty-six thousand, three hundred ninety-nine".