18349117 has 8 divisors (see below), whose sum is σ = 19938560. Its totient is φ = 16822080.

The previous prime is 18349081. The next prime is 18349127. The reversal of 18349117 is 71194381.

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-18349117 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 (18349127) 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, 14988 + ... + 16165.

It is an arithmetic number, because the mean of its divisors is an integer number (2492320).

Almost surely, 2^18349117 is an apocalyptic number.

It is an amenable number.

18349117 is a deficient number, since it is larger than the sum of its proper divisors (1589443).

18349117 is a wasteful number, since it uses less digits than its factorization.

18349117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31203.

The product of its digits is 6048, while the sum is 34.

The square root of 18349117 is about 4283.5869315330. The cubic root of 18349117 is about 263.7576450844.

The spelling of 18349117 in words is "eighteen million, three hundred forty-nine thousand, one hundred seventeen".