80748218 has 8 divisors (see below), whose sum is σ = 122194548. Its totient is φ = 40016704.

The previous prime is 80748179. The next prime is 80748257. The reversal of 80748218 is 81284708.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (80748179) and next prime (80748257).

It can be written as a sum of positive squares in 2 ways, for example, as 59799289 + 20948929 = 7733^2 + 4577^2 .

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

It is a Curzon number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 178421 + ... + 178872.

Almost surely, 2^80748218 is an apocalyptic number.

80748218 is a deficient number, since it is larger than the sum of its proper divisors (41446330).

80748218 is a wasteful number, since it uses less digits than its factorization.

80748218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357408.

The product of its (nonzero) digits is 28672, while the sum is 38.

The square root of 80748218 is about 8986.0012241263. The cubic root of 80748218 is about 432.2260940694.

The spelling of 80748218 in words is "eighty million, seven hundred forty-eight thousand, two hundred eighteen".