80170798 has 4 divisors (see below), whose sum is σ = 120256200. Its totient is φ = 40085398.

The previous prime is 80170781. The next prime is 80170799. The reversal of 80170798 is 89707108.

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 self number, because there is not a number n which added to its sum of digits gives 80170798.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80170799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20042698 + ... + 20042701.

It is an arithmetic number, because the mean of its divisors is an integer number (30064050).

Almost surely, 2^80170798 is an apocalyptic number.

80170798 is a deficient number, since it is larger than the sum of its proper divisors (40085402).

80170798 is a wasteful number, since it uses less digits than its factorization.

80170798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40085401.

The product of its (nonzero) digits is 28224, while the sum is 40.

The square root of 80170798 is about 8953.8147177614. The cubic root of 80170798 is about 431.1933643190.

The spelling of 80170798 in words is "eighty million, one hundred seventy thousand, seven hundred ninety-eight".