770978798 has 16 divisors (see below), whose sum is σ = 1227247200. Its totient is φ = 361998336.

The previous prime is 770978779. The next prime is 770978807. The reversal of 770978798 is 897879077.

It is a self number, because there is not a number n which added to its sum of digits gives 770978798.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9986 + ... + 40517.

It is an arithmetic number, because the mean of its divisors is an integer number (76702950).

Almost surely, 2^770978798 is an apocalyptic number.

770978798 is a deficient number, since it is larger than the sum of its proper divisors (456268402).

770978798 is a wasteful number, since it uses less digits than its factorization.

770978798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50971.

The product of its (nonzero) digits is 12446784, while the sum is 62.

The square root of 770978798 is about 27766.5049655156. The cubic root of 770978798 is about 916.9538500884.

The spelling of 770978798 in words is "seven hundred seventy million, nine hundred seventy-eight thousand, seven hundred ninety-eight".