80319766 has 4 divisors (see below), whose sum is σ = 120479652. Its totient is φ = 40159882.

The previous prime is 80319739. The next prime is 80319773. The reversal of 80319766 is 66791308.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20079940 + ... + 20079943.

It is an arithmetic number, because the mean of its divisors is an integer number (30119913).

Almost surely, 2^80319766 is an apocalyptic number.

80319766 is a deficient number, since it is larger than the sum of its proper divisors (40159886).

80319766 is a wasteful number, since it uses less digits than its factorization.

80319766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40159885.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 80319766 is about 8962.1295460398. The cubic root of 80319766 is about 431.4602706017.

The spelling of 80319766 in words is "eighty million, three hundred nineteen thousand, seven hundred sixty-six".