80351998 has 4 divisors (see below), whose sum is σ = 120528000. Its totient is φ = 40175998.

The previous prime is 80351983. The next prime is 80352001. The reversal of 80351998 is 89915308.

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, 20087998 + ... + 20088001.

It is an arithmetic number, because the mean of its divisors is an integer number (30132000).

Almost surely, 2^80351998 is an apocalyptic number.

80351998 is a deficient number, since it is larger than the sum of its proper divisors (40176002).

80351998 is a wasteful number, since it uses less digits than its factorization.

80351998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40176001.

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 80351998 is about 8963.9275989936. The cubic root of 80351998 is about 431.5179773086.

The spelling of 80351998 in words is "eighty million, three hundred fifty-one thousand, nine hundred ninety-eight".