80506198 has 4 divisors (see below), whose sum is σ = 120759300. Its totient is φ = 40253098.

The previous prime is 80506183. The next prime is 80506207. The reversal of 80506198 is 89160508.

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

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, 20126548 + ... + 20126551.

It is an arithmetic number, because the mean of its divisors is an integer number (30189825).

Almost surely, 2^80506198 is an apocalyptic number.

80506198 is a deficient number, since it is larger than the sum of its proper divisors (40253102).

80506198 is a wasteful number, since it uses less digits than its factorization.

80506198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40253101.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 80506198 is about 8972.5246168512. The cubic root of 80506198 is about 431.7938366706.

The spelling of 80506198 in words is "eighty million, five hundred six thousand, one hundred ninety-eight".