780938 has 8 divisors (see below), whose sum is σ = 1233120. Its totient is φ = 369900.

The previous prime is 780931. The next prime is 780953. The reversal of 780938 is 839087.

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

It is a junction number, because it is equal to n+sod(n) for n = 780898 and 780907.

It is not an unprimeable number, because it can be changed into a prime (780931) by changing a digit.

780938 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10238 + ... + 10313.

It is an arithmetic number, because the mean of its divisors is an integer number (154140).

2⁷⁸⁰⁹³⁸ is an apocalyptic number.

780938 is a deficient number, since it is larger than the sum of its proper divisors (452182).

780938 is a wasteful number, since it uses less digits than its factorization.

780938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20572.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 780938 is about 883.7069650059. The cubic root of 780938 is about 92.0885253767.

The spelling of 780938 in words is "seven hundred eighty thousand, nine hundred thirty-eight".