80704278 has 12 divisors (see below), whose sum is σ = 174859308. Its totient is φ = 26901420.

The previous prime is 80704237. The next prime is 80704279. The reversal of 80704278 is 87240708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80704279) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2241768 + ... + 2241803.

It is an arithmetic number, because the mean of its divisors is an integer number (14571609).

Almost surely, 2^80704278 is an apocalyptic number.

80704278 is an abundant number, since it is smaller than the sum of its proper divisors (94155030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80704278 is a wasteful number, since it uses less digits than its factorization.

80704278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4483579 (or 4483576 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 80704278 is about 8983.5559774512. Note that the first 3 decimals coincide. The cubic root of 80704278 is about 432.1476797052.

The spelling of 80704278 in words is "eighty million, seven hundred four thousand, two hundred seventy-eight".