18214827 has 8 divisors (see below), whose sum is σ = 25342464. Its totient is φ = 11615208.

The previous prime is 18214811. The next prime is 18214849. The reversal of 18214827 is 72841281.

It is a happy number.

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

It is not a de Polignac number, because 18214827 - 2⁴ = 18214811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18214877) 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, 131923 + ... + 132060.

It is an arithmetic number, because the mean of its divisors is an integer number (3167808).

Almost surely, 2^18214827 is an apocalyptic number.

18214827 is a deficient number, since it is larger than the sum of its proper divisors (7127637).

18214827 is a wasteful number, since it uses less digits than its factorization.

18214827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264009.

The product of its digits is 7168, while the sum is 33.

The square root of 18214827 is about 4267.8831989641. The cubic root of 18214827 is about 263.1126226633.

The spelling of 18214827 in words is "eighteen million, two hundred fourteen thousand, eight hundred twenty-seven".