780994 has 8 divisors (see below), whose sum is σ = 1186560. Its totient is φ = 385476.

The previous prime is 780991. The next prime is 781003. The reversal of 780994 is 499087.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (780991) by changing a digit.

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, 2314 + ... + 2629.

It is an arithmetic number, because the mean of its divisors is an integer number (148320).

2⁷⁸⁰⁹⁹⁴ is an apocalyptic number.

780994 is a deficient number, since it is larger than the sum of its proper divisors (405566).

780994 is a wasteful number, since it uses less digits than its factorization.

780994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5024.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 780994 is about 883.7386491492. The cubic root of 780994 is about 92.0907265050.

The spelling of 780994 in words is "seven hundred eighty thousand, nine hundred ninety-four".