8689998 has 16 divisors (see below), whose sum is σ = 18135936. Its totient is φ = 2770680.

The previous prime is 8689997. The next prime is 8690041. The reversal of 8689998 is 8999868.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8689997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31348 + ... + 31623.

It is an arithmetic number, because the mean of its divisors is an integer number (1133496).

Almost surely, 2^8689998 is an apocalyptic number.

8689998 is an abundant number, since it is smaller than the sum of its proper divisors (9445938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8689998 is a wasteful number, since it uses less digits than its factorization.

8689998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62999.

The product of its digits is 2239488, while the sum is 57.

The square root of 8689998 is about 2947.8802553699. The cubic root of 8689998 is about 205.5921644831.

The spelling of 8689998 in words is "eight million, six hundred eighty-nine thousand, nine hundred ninety-eight".