8817997 has 4 divisors (see below), whose sum is σ = 8849440. Its totient is φ = 8786556.

The previous prime is 8817973. The next prime is 8818009. The reversal of 8817997 is 7997188.

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 8817997 - 2¹¹ = 8815949 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 8817997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8811997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15297 + ... + 15862.

It is an arithmetic number, because the mean of its divisors is an integer number (2212360).

Almost surely, 2^8817997 is an apocalyptic number.

It is an amenable number.

8817997 is a deficient number, since it is larger than the sum of its proper divisors (31443).

8817997 is a wasteful number, since it uses less digits than its factorization.

8817997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31442.

The product of its digits is 254016, while the sum is 49.

The square root of 8817997 is about 2969.5112392446. The cubic root of 8817997 is about 206.5966692650.

The spelling of 8817997 in words is "eight million, eight hundred seventeen thousand, nine hundred ninety-seven".