18868529 has 8 divisors (see below), whose sum is σ = 19575072. Its totient is φ = 18174240.

The previous prime is 18868523. The next prime is 18868541. The reversal of 18868529 is 92586881.

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 18868529 - 2⁴ = 18868513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18868523) 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, 134 + ... + 6144.

It is an arithmetic number, because the mean of its divisors is an integer number (2446884).

Almost surely, 2^18868529 is an apocalyptic number.

It is an amenable number.

18868529 is a deficient number, since it is larger than the sum of its proper divisors (706543).

18868529 is an equidigital number, since it uses as much as digits as its factorization.

18868529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6127.

The product of its digits is 276480, while the sum is 47.

The square root of 18868529 is about 4343.7920069911. The cubic root of 18868529 is about 266.2232706237.

The spelling of 18868529 in words is "eighteen million, eight hundred sixty-eight thousand, five hundred twenty-nine".