80101898 has 4 divisors (see below), whose sum is σ = 120152850. Its totient is φ = 40050948.

The previous prime is 80101897. The next prime is 80101907. The reversal of 80101898 is 89810108.

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

It can be written as a sum of positive squares in only one way, i.e., 62520649 + 17581249 = 7907^2 + 4193^2 .

It is not an unprimeable number, because it can be changed into a prime (80101897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20025473 + ... + 20025476.

Almost surely, 2^80101898 is an apocalyptic number.

80101898 is a deficient number, since it is larger than the sum of its proper divisors (40050952).

80101898 is a wasteful number, since it uses less digits than its factorization.

80101898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40050951.

The product of its (nonzero) digits is 4608, while the sum is 35.

The square root of 80101898 is about 8949.9663686519. The cubic root of 80101898 is about 431.0698042096.

The spelling of 80101898 in words is "eighty million, one hundred one thousand, eight hundred ninety-eight".