80766208 has 18 divisors (see below), whose sum is σ = 161217434. Its totient is φ = 40382976.

The previous prime is 80766199. The next prime is 80766241. The reversal of 80766208 is 80266708.

It can be written as a sum of positive squares in only one way, i.e., 54878464 + 25887744 = 7408^2 + 5088^2 .

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, 157491 + ... + 158002.

Almost surely, 2^80766208 is an apocalyptic number.

It is an amenable number.

80766208 is a deficient number, since it is larger than the sum of its proper divisors (80451226).

80766208 is an equidigital number, since it uses as much as digits as its factorization.

80766208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315509 (or 315495 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 80766208 is about 8987.0021698006. The cubic root of 80766208 is about 432.2581904229.

Subtracting from 80766208 its reverse (80266708), we obtain a triangular number (499500 = T₉₉₉).

The spelling of 80766208 in words is "eighty million, seven hundred sixty-six thousand, two hundred eight".