18484709 has 8 divisors (see below), whose sum is σ = 19415040. Its totient is φ = 17564976.

The previous prime is 18484679. The next prime is 18484721. The reversal of 18484709 is 90748481.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18484709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18484309) 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, 1052 + ... + 6170.

It is an arithmetic number, because the mean of its divisors is an integer number (2426880).

Almost surely, 2^18484709 is an apocalyptic number.

It is an amenable number.

18484709 is a deficient number, since it is larger than the sum of its proper divisors (930331).

18484709 is a wasteful number, since it uses less digits than its factorization.

18484709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5299.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 18484709 is about 4299.3847234226. The cubic root of 18484709 is about 264.4057361147.

The spelling of 18484709 in words is "eighteen million, four hundred eighty-four thousand, seven hundred nine".