8997229 has 4 divisors (see below), whose sum is σ = 9131584. Its totient is φ = 8862876.

The previous prime is 8997217. The next prime is 8997239. The reversal of 8997229 is 9227998.

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 8997229 - 2⁷ = 8997101 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 (8997239) 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, 67077 + ... + 67210.

It is an arithmetic number, because the mean of its divisors is an integer number (2282896).

Almost surely, 2^8997229 is an apocalyptic number.

It is an amenable number.

8997229 is a deficient number, since it is larger than the sum of its proper divisors (134355).

8997229 is a wasteful number, since it uses less digits than its factorization.

8997229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134354.

The product of its digits is 163296, while the sum is 46.

The square root of 8997229 is about 2999.5381311129. The cubic root of 8997229 is about 207.9870322907.

It can be divided in two parts, 899 and 7229, that added together give a triangular number (8128 = T₁₂₇).

The spelling of 8997229 in words is "eight million, nine hundred ninety-seven thousand, two hundred twenty-nine".