768948109 has 8 divisors (see below), whose sum is σ = 772293528. Its totient is φ = 765610560.

The previous prime is 768948101. The next prime is 768948133. The reversal of 768948109 is 901849867.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 444155625 + 324792484 = 21075^2 + 18022^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 768948109 - 2³ = 768948101 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 (768948101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267339 + ... + 270199.

It is an arithmetic number, because the mean of its divisors is an integer number (96536691).

Almost surely, 2^768948109 is an apocalyptic number.

It is an amenable number.

768948109 is a deficient number, since it is larger than the sum of its proper divisors (3345419).

768948109 is a wasteful number, since it uses less digits than its factorization.

768948109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3935.

The product of its (nonzero) digits is 870912, while the sum is 52.

The square root of 768948109 is about 27729.9136132805. The cubic root of 768948109 is about 916.1480841708.

The spelling of 768948109 in words is "seven hundred sixty-eight million, nine hundred forty-eight thousand, one hundred nine".