8998397 has 2 divisors, whose sum is σ = 8998398. Its totient is φ = 8998396.

The previous prime is 8998391. The next prime is 8998411. The reversal of 8998397 is 7938998.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8561476 + 436921 = 2926^2 + 661^2 .

It is a cyclic number.

It is not a de Polignac number, because 8998397 - 2⁶ = 8998333 is a prime.

It is a super-2 number, since 2×8998397² = 161942297139218, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8998391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4499198 + 4499199.

It is an arithmetic number, because the mean of its divisors is an integer number (4499199).

Almost surely, 2^8998397 is an apocalyptic number.

It is an amenable number.

8998397 is a deficient number, since it is larger than the sum of its proper divisors (1).

8998397 is an equidigital number, since it uses as much as digits as its factorization.

8998397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 979776, while the sum is 53.

The square root of 8998397 is about 2999.7328214359. The cubic root of 8998397 is about 207.9960320372.

The spelling of 8998397 in words is "eight million, nine hundred ninety-eight thousand, three hundred ninety-seven".