768109 has 4 divisors (see below), whose sum is σ = 786016. Its totient is φ = 750204.

The previous prime is 768107. The next prime is 768127. The reversal of 768109 is 901867.

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: 901867 = 17 ⋅53051.

It is a cyclic number.

It is not a de Polignac number, because 768109 - 2¹ = 768107 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 (768101) 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, 8889 + ... + 8974.

It is an arithmetic number, because the mean of its divisors is an integer number (196504).

2⁷⁶⁸¹⁰⁹ is an apocalyptic number.

It is an amenable number.

768109 is a deficient number, since it is larger than the sum of its proper divisors (17907).

768109 is a wasteful number, since it uses less digits than its factorization.

768109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17906.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 768109 is about 876.4182791339. The cubic root of 768109 is about 91.5814716248.

The spelling of 768109 in words is "seven hundred sixty-eight thousand, one hundred nine".