768388069 has 4 divisors (see below), whose sum is σ = 769554720. Its totient is φ = 767221420.

The previous prime is 768388067. The next prime is 768388073. The reversal of 768388069 is 960883867.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 960883867 = 8297 ⋅115811.

It is a cyclic number.

It is not a de Polignac number, because 768388069 - 2¹ = 768388067 is a prime.

It is a super-2 number, since 2×768388069² = 1180840449163097522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768388067) 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, 582337 + ... + 583654.

It is an arithmetic number, because the mean of its divisors is an integer number (192388680).

Almost surely, 2^768388069 is an apocalyptic number.

It is an amenable number.

768388069 is a deficient number, since it is larger than the sum of its proper divisors (1166651).

768388069 is a wasteful number, since it uses less digits than its factorization.

768388069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166650.

The product of its (nonzero) digits is 3483648, while the sum is 55.

The square root of 768388069 is about 27719.8136537748. The cubic root of 768388069 is about 915.9256139419.

The spelling of 768388069 in words is "seven hundred sixty-eight million, three hundred eighty-eight thousand, sixty-nine".