8918997 has 8 divisors (see below), whose sum is σ = 11909280. Its totient is φ = 5937360.

The previous prime is 8918989. The next prime is 8919011. The reversal of 8918997 is 7998198.

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

It is not a de Polignac number, because 8918997 - 2³ = 8918989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8918927) 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 7 ways as a sum of consecutive naturals, for example, 847 + ... + 4307.

It is an arithmetic number, because the mean of its divisors is an integer number (1488660).

Almost surely, 2^8918997 is an apocalyptic number.

It is an amenable number.

8918997 is a deficient number, since it is larger than the sum of its proper divisors (2990283).

8918997 is a wasteful number, since it uses less digits than its factorization.

8918997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4323.

The product of its digits is 326592, while the sum is 51.

The square root of 8918997 is about 2986.4689852734. The cubic root of 8918997 is about 207.3824524142.

The spelling of 8918997 in words is "eight million, nine hundred eighteen thousand, nine hundred ninety-seven".