769838109 has 8 divisors (see below), whose sum is σ = 1030710912. Its totient is φ = 511095360.

The previous prime is 769838093. The next prime is 769838119. The reversal of 769838109 is 901838967.

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

It is not a de Polignac number, because 769838109 - 2⁴ = 769838093 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (769838119) 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, 531669 + ... + 533114.

It is an arithmetic number, because the mean of its divisors is an integer number (128838864).

Almost surely, 2^769838109 is an apocalyptic number.

It is an amenable number.

769838109 is a deficient number, since it is larger than the sum of its proper divisors (260872803).

769838109 is a wasteful number, since it uses less digits than its factorization.

769838109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065027.

The product of its (nonzero) digits is 653184, while the sum is 51.

The square root of 769838109 is about 27745.9566243444. The cubic root of 769838109 is about 916.5014055502.

The spelling of 769838109 in words is "seven hundred sixty-nine million, eight hundred thirty-eight thousand, one hundred nine".