80818198 has 8 divisors (see below), whose sum is σ = 121441320. Its totient is φ = 40337760.

The previous prime is 80818193. The next prime is 80818207. The reversal of 80818198 is 89181808.

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

It is a super-2 number, since 2×80818198² = 13063162255934408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80818193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34243 + ... + 36526.

It is an arithmetic number, because the mean of its divisors is an integer number (15180165).

Almost surely, 2^80818198 is an apocalyptic number.

80818198 is a deficient number, since it is larger than the sum of its proper divisors (40623122).

80818198 is a wasteful number, since it uses less digits than its factorization.

80818198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71342.

The product of its (nonzero) digits is 36864, while the sum is 43.

The square root of 80818198 is about 8989.8942151729. The cubic root of 80818198 is about 432.3509201406.

The spelling of 80818198 in words is "eighty million, eight hundred eighteen thousand, one hundred ninety-eight".