80817386 has 8 divisors (see below), whose sum is σ = 130551204. Its totient is φ = 37300320.

The previous prime is 80817379. The next prime is 80817389. The reversal of 80817386 is 68371808.

It can be written as a sum of positive squares in 2 ways, for example, as 78943225 + 1874161 = 8885^2 + 1369^2 .

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 (80817389) 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 3 ways as a sum of consecutive naturals, for example, 1554155 + ... + 1554206.

Almost surely, 2^80817386 is an apocalyptic number.

80817386 is a deficient number, since it is larger than the sum of its proper divisors (49733818).

80817386 is a wasteful number, since it uses less digits than its factorization.

80817386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3108376.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 80817386 is about 8989.8490532378. The cubic root of 80817386 is about 432.3494721576.

The spelling of 80817386 in words is "eighty million, eight hundred seventeen thousand, three hundred eighty-six".