8159397 has 8 divisors (see below), whose sum is σ = 10919040. Its totient is φ = 5419680.

The previous prime is 8159383. The next prime is 8159399. The reversal of 8159397 is 7939518.

It is a happy number.

8159397 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 8159397 - 2¹⁰ = 8158373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8159399) 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, 3997 + ... + 5682.

It is an arithmetic number, because the mean of its divisors is an integer number (1364880).

Almost surely, 2^8159397 is an apocalyptic number.

It is an amenable number.

8159397 is a deficient number, since it is larger than the sum of its proper divisors (2759643).

8159397 is a wasteful number, since it uses less digits than its factorization.

8159397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9963.

The product of its digits is 68040, while the sum is 42.

The square root of 8159397 is about 2856.4658233558. The cubic root of 8159397 is about 201.3195826927.

The spelling of 8159397 in words is "eight million, one hundred fifty-nine thousand, three hundred ninety-seven".