769139 has 8 divisors (see below), whose sum is σ = 925440. Its totient is φ = 624456.

The previous prime is 769123. The next prime is 769147. The reversal of 769139 is 931967.

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

It is not a de Polignac number, because 769139 - 2⁴ = 769123 is a prime.

It is a super-3 number, since 3×769139³ = 1365009753339697857, which contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 769099 and 769108.

It is not an unprimeable number, because it can be changed into a prime (769159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2759 + ... + 3024.

It is an arithmetic number, because the mean of its divisors is an integer number (115680).

2⁷⁶⁹¹³⁹ is an apocalyptic number.

769139 is a deficient number, since it is larger than the sum of its proper divisors (156301).

769139 is a wasteful number, since it uses less digits than its factorization.

769139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5809.

The product of its digits is 10206, while the sum is 35.

The square root of 769139 is about 877.0057012357. The cubic root of 769139 is about 91.6223889006.

The spelling of 769139 in words is "seven hundred sixty-nine thousand, one hundred thirty-nine".