8197851 has 8 divisors (see below), whose sum is σ = 11109904. Its totient is φ = 5375520.

The previous prime is 8197837. The next prime is 8197901. The reversal of 8197851 is 1587918.

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

It is not a de Polignac number, because 8197851 - 2⁹ = 8197339 is a prime.

It is a super-2 number, since 2×8197851² = 134409522036402, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (8197801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22216 + ... + 22581.

It is an arithmetic number, because the mean of its divisors is an integer number (1388738).

Almost surely, 2^8197851 is an apocalyptic number.

8197851 is a deficient number, since it is larger than the sum of its proper divisors (2912053).

8197851 is a wasteful number, since it uses less digits than its factorization.

8197851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44861.

The product of its digits is 20160, while the sum is 39.

The square root of 8197851 is about 2863.1889563911. The cubic root of 8197851 is about 201.6353500385.

The spelling of 8197851 in words is "eight million, one hundred ninety-seven thousand, eight hundred fifty-one".