780968 has 16 divisors (see below), whose sum is σ = 1500660. Its totient is φ = 380800.

The previous prime is 780961. The next prime is 780971. The reversal of 780968 is 869087.

It can be written as a sum of positive squares in 2 ways, for example, as 487204 + 293764 = 698^2 + 542^2 .

It is a super-2 number, since 2×780968² = 1219822034048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (780961) by changing a digit.

780968 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, 863 + ... + 1518.

2⁷⁸⁰⁹⁶⁸ is an apocalyptic number.

It is an amenable number.

780968 is a deficient number, since it is larger than the sum of its proper divisors (719692).

780968 is a wasteful number, since it uses less digits than its factorization.

780968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2428 (or 2424 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 780968 is about 883.7239387954. The cubic root of 780968 is about 92.0897045657.

The spelling of 780968 in words is "seven hundred eighty thousand, nine hundred sixty-eight".