18609485 has 16 divisors (see below), whose sum is σ = 22896000. Its totient is φ = 14515776.

The previous prime is 18609473. The next prime is 18609499. The reversal of 18609485 is 58490681.

It is a cyclic number.

It is not a de Polignac number, because 18609485 - 2⁶ = 18609421 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58547 + ... + 58863.

It is an arithmetic number, because the mean of its divisors is an integer number (1431000).

Almost surely, 2^18609485 is an apocalyptic number.

It is an amenable number.

18609485 is a deficient number, since it is larger than the sum of its proper divisors (4286515).

18609485 is a wasteful number, since it uses less digits than its factorization.

18609485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 18609485 is about 4313.8712312724. The cubic root of 18609485 is about 264.9993354677. Note that the first 3 decimals are identical.

The spelling of 18609485 in words is "eighteen million, six hundred nine thousand, four hundred eighty-five".