8151998 has 8 divisors (see below), whose sum is σ = 12259992. Its totient is φ = 4065336.

The previous prime is 8151991. The next prime is 8152021. The reversal of 8151998 is 8991518.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8151991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4340 + ... + 5927.

It is an arithmetic number, because the mean of its divisors is an integer number (1532499).

Almost surely, 2^8151998 is an apocalyptic number.

8151998 is a deficient number, since it is larger than the sum of its proper divisors (4107994).

8151998 is a wasteful number, since it uses less digits than its factorization.

8151998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10666.

The product of its digits is 25920, while the sum is 41.

The square root of 8151998 is about 2855.1703977171. The cubic root of 8151998 is about 201.2587116067.

The spelling of 8151998 in words is "eight million, one hundred fifty-one thousand, nine hundred ninety-eight".