18497849 has 8 divisors (see below), whose sum is σ = 19692000. Its totient is φ = 17325792.

The previous prime is 18497833. The next prime is 18497851. The reversal of 18497849 is 94879481.

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

It is a cyclic number.

It is not a de Polignac number, because 18497849 - 2⁴ = 18497833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18497797 and 18497806.

It is not an unprimeable number, because it can be changed into a prime (18497879) 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, 3779 + ... + 7160.

It is an arithmetic number, because the mean of its divisors is an integer number (2461500).

Almost surely, 2^18497849 is an apocalyptic number.

18497849 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

18497849 is a deficient number, since it is larger than the sum of its proper divisors (1194151).

18497849 is a wasteful number, since it uses less digits than its factorization.

18497849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11047.

The product of its digits is 580608, while the sum is 50.

The square root of 18497849 is about 4300.9125775816. The cubic root of 18497849 is about 264.4683729037.

The spelling of 18497849 in words is "eighteen million, four hundred ninety-seven thousand, eight hundred forty-nine".