8351997 has 4 divisors (see below), whose sum is σ = 11136000. Its totient is φ = 5567996.

The previous prime is 8351983. The next prime is 8352007. The reversal of 8351997 is 7991538.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8351997 - 2¹⁰ = 8350973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8351977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1391997 + ... + 1392002.

It is an arithmetic number, because the mean of its divisors is an integer number (2784000).

Almost surely, 2^8351997 is an apocalyptic number.

It is an amenable number.

8351997 is a deficient number, since it is larger than the sum of its proper divisors (2784003).

8351997 is a wasteful number, since it uses less digits than its factorization.

8351997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2784002.

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

The square root of 8351997 is about 2889.9821798759. The cubic root of 8351997 is about 202.8913085868.

The spelling of 8351997 in words is "eight million, three hundred fifty-one thousand, nine hundred ninety-seven".