780669343 has 8 divisors (see below), whose sum is σ = 800795600. Its totient is φ = 760632768.

The previous prime is 780669341. The next prime is 780669347. The reversal of 780669343 is 343966087.

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 780669343 - 2¹ = 780669341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 780669293 and 780669302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (780669341) 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, 4608 + ... + 39781.

It is an arithmetic number, because the mean of its divisors is an integer number (100099450).

Almost surely, 2^780669343 is an apocalyptic number.

780669343 is a deficient number, since it is larger than the sum of its proper divisors (20126257).

780669343 is a wasteful number, since it uses less digits than its factorization.

780669343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44841.

The product of its (nonzero) digits is 653184, while the sum is 46.

The square root of 780669343 is about 27940.4606798098. The cubic root of 780669343 is about 920.7796411810.

The spelling of 780669343 in words is "seven hundred eighty million, six hundred sixty-nine thousand, three hundred forty-three".