8051998 has 4 divisors (see below), whose sum is σ = 12078000. Its totient is φ = 4025998.

The previous prime is 8051969. The next prime is 8052007. The reversal of 8051998 is 8991508.

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 8051998.

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, 2012998 + ... + 2013001.

It is an arithmetic number, because the mean of its divisors is an integer number (3019500).

Almost surely, 2^8051998 is an apocalyptic number.

8051998 is a deficient number, since it is larger than the sum of its proper divisors (4026002).

8051998 is a wasteful number, since it uses less digits than its factorization.

8051998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4026001.

The product of its (nonzero) digits is 25920, while the sum is 40.

The square root of 8051998 is about 2837.6042712119. The cubic root of 8051998 is about 200.4323812254.

The spelling of 8051998 in words is "eight million, fifty-one thousand, nine hundred ninety-eight".