780683564 has 6 divisors (see below), whose sum is σ = 1366196244. Its totient is φ = 390341780.

The previous prime is 780683507. The next prime is 780683569. The reversal of 780683564 is 465386087.

It is not an unprimeable number, because it can be changed into a prime (780683569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97585442 + ... + 97585449.

It is an arithmetic number, because the mean of its divisors is an integer number (227699374).

Almost surely, 2^780683564 is an apocalyptic number.

It is an amenable number.

780683564 is a deficient number, since it is larger than the sum of its proper divisors (585512680).

780683564 is a wasteful number, since it uses less digits than its factorization.

780683564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195170895 (or 195170893 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 47.

The square root of 780683564 is about 27940.7151662229. The cubic root of 780683564 is about 920.7852322496.

The spelling of 780683564 in words is "seven hundred eighty million, six hundred eighty-three thousand, five hundred sixty-four".