8384397 has 16 divisors (see below), whose sum is σ = 13332480. Its totient is φ = 4582512.

The previous prime is 8384381. The next prime is 8384399. The reversal of 8384397 is 7934838.

It is not a de Polignac number, because 8384397 - 2⁴ = 8384381 is a prime.

It is a super-2 number, since 2×8384397² = 140596226107218, which contains 22 as substring.

8384397 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8384399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8197 + ... + 9162.

It is an arithmetic number, because the mean of its divisors is an integer number (833280).

Almost surely, 2^8384397 is an apocalyptic number.

It is an amenable number.

8384397 is a deficient number, since it is larger than the sum of its proper divisors (4948083).

8384397 is a wasteful number, since it uses less digits than its factorization.

8384397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17392.

The product of its digits is 145152, while the sum is 42.

The square root of 8384397 is about 2895.5823248528. The cubic root of 8384397 is about 203.1533296030.

The spelling of 8384397 in words is "eight million, three hundred eighty-four thousand, three hundred ninety-seven".