80861198 has 8 divisors (see below), whose sum is σ = 132318360. Its totient is φ = 36755080.

The previous prime is 80861189. The next prime is 80861201. The reversal of 80861198 is 89116808.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1837733 + ... + 1837776.

It is an arithmetic number, because the mean of its divisors is an integer number (16539795).

Almost surely, 2^80861198 is an apocalyptic number.

80861198 is a deficient number, since it is larger than the sum of its proper divisors (51457162).

80861198 is a wasteful number, since it uses less digits than its factorization.

80861198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3675522.

The product of its (nonzero) digits is 27648, while the sum is 41.

The square root of 80861198 is about 8992.2854714472. The cubic root of 80861198 is about 432.4275851897.

The spelling of 80861198 in words is "eighty million, eight hundred sixty-one thousand, one hundred ninety-eight".