780425939 has 8 divisors (see below), whose sum is σ = 806799840. Its totient is φ = 754401600.

The previous prime is 780425927. The next prime is 780425957. The reversal of 780425939 is 939524087.

It is a happy number.

780425939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 780425939 - 2⁸ = 780425683 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 780425893 and 780425902.

It is not an unprimeable number, because it can be changed into a prime (780425339) 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, 82847 + ... + 91784.

It is an arithmetic number, because the mean of its divisors is an integer number (100849980).

Almost surely, 2^780425939 is an apocalyptic number.

780425939 is a deficient number, since it is larger than the sum of its proper divisors (26373901).

780425939 is a wasteful number, since it uses less digits than its factorization.

780425939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174781.

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 780425939 is about 27936.1045781261. The cubic root of 780425939 is about 920.6839349571.

The spelling of 780425939 in words is "seven hundred eighty million, four hundred twenty-five thousand, nine hundred thirty-nine".