80776814 has 16 divisors (see below), whose sum is σ = 122724288. Its totient is φ = 39872352.

The previous prime is 80776811. The next prime is 80776819. The reversal of 80776814 is 41867708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80776811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53579 + ... + 55065.

It is an arithmetic number, because the mean of its divisors is an integer number (7670268).

Almost surely, 2^80776814 is an apocalyptic number.

80776814 is a deficient number, since it is larger than the sum of its proper divisors (41947474).

80776814 is a wasteful number, since it uses less digits than its factorization.

80776814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1819.

The product of its (nonzero) digits is 75264, while the sum is 41.

The square root of 80776814 is about 8987.5922248398. The cubic root of 80776814 is about 432.2771105869.

The spelling of 80776814 in words is "eighty million, seven hundred seventy-six thousand, eight hundred fourteen".