8609998 has 4 divisors (see below), whose sum is σ = 12915000. Its totient is φ = 4304998.

The previous prime is 8609987. The next prime is 8609999. The reversal of 8609998 is 8999068.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8609999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2152498 + ... + 2152501.

It is an arithmetic number, because the mean of its divisors is an integer number (3228750).

Almost surely, 2^8609998 is an apocalyptic number.

8609998 is a deficient number, since it is larger than the sum of its proper divisors (4305002).

8609998 is a wasteful number, since it uses less digits than its factorization.

8609998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4305001.

The product of its (nonzero) digits is 279936, while the sum is 49.

The square root of 8609998 is about 2934.2798094251. The cubic root of 8609998 is about 204.9593256602.

The spelling of 8609998 in words is "eight million, six hundred nine thousand, nine hundred ninety-eight".