18897098 has 16 divisors (see below), whose sum is σ = 32742144. Its totient is φ = 8084160.

The previous prime is 18897049. The next prime is 18897113. The reversal of 18897098 is 89079881.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24890 + ... + 25637.

It is an arithmetic number, because the mean of its divisors is an integer number (2046384).

Almost surely, 2^18897098 is an apocalyptic number.

18897098 is a deficient number, since it is larger than the sum of its proper divisors (13845046).

18897098 is a wasteful number, since it uses less digits than its factorization.

18897098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50557.

The product of its (nonzero) digits is 290304, while the sum is 50.

The square root of 18897098 is about 4347.0792493351. The cubic root of 18897098 is about 266.3575665053.

The spelling of 18897098 in words is "eighteen million, eight hundred ninety-seven thousand, ninety-eight".