8426197 has 8 divisors (see below), whose sum is σ = 9296280. Its totient is φ = 7587840.

The previous prime is 8426189. The next prime is 8426221. The reversal of 8426197 is 7916248.

8426197 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1168561 + 7257636 = 1081^2 + 2694^2 .

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

It is not a de Polignac number, because 8426197 - 2³ = 8426189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8426107) 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, 7372 + ... + 8437.

It is an arithmetic number, because the mean of its divisors is an integer number (1162035).

Almost surely, 2^8426197 is an apocalyptic number.

It is an amenable number.

8426197 is a deficient number, since it is larger than the sum of its proper divisors (870083).

8426197 is a wasteful number, since it uses less digits than its factorization.

8426197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15863.

The product of its digits is 24192, while the sum is 37.

The square root of 8426197 is about 2902.7912429246. The cubic root of 8426197 is about 203.4903737697.

The spelling of 8426197 in words is "eight million, four hundred twenty-six thousand, one hundred ninety-seven".