8509898 has 4 divisors (see below), whose sum is σ = 12764850. Its totient is φ = 4254948.

The previous prime is 8509883. The next prime is 8509901. The reversal of 8509898 is 8989058.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 6416089 + 2093809 = 2533^2 + 1447^2 .

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2127473 + ... + 2127476.

Almost surely, 2^8509898 is an apocalyptic number.

8509898 is a deficient number, since it is larger than the sum of its proper divisors (4254952).

8509898 is a wasteful number, since it uses less digits than its factorization.

8509898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4254951.

The product of its (nonzero) digits is 207360, while the sum is 47.

The square root of 8509898 is about 2917.1729465357. The cubic root of 8509898 is about 204.1619404894.

The spelling of 8509898 in words is "eight million, five hundred nine thousand, eight hundred ninety-eight".