80884778 has 8 divisors (see below), whose sum is σ = 130660068. Its totient is φ = 37331424.

The previous prime is 80884777. The next prime is 80884781. The reversal of 80884778 is 87748808.

It can be written as a sum of positive squares in 2 ways, for example, as 70341769 + 10543009 = 8387^2 + 3247^2 .

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

It is not an unprimeable number, because it can be changed into a prime (80884777) 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, 1555451 + ... + 1555502.

Almost surely, 2^80884778 is an apocalyptic number.

80884778 is a deficient number, since it is larger than the sum of its proper divisors (49775290).

80884778 is a wasteful number, since it uses less digits than its factorization.

80884778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3110968.

The product of its (nonzero) digits is 802816, while the sum is 50.

The square root of 80884778 is about 8993.5964997325. The cubic root of 80884778 is about 432.4696146250.

The spelling of 80884778 in words is "eighty million, eight hundred eighty-four thousand, seven hundred seventy-eight".