18026063 has 4 divisors (see below), whose sum is σ = 19664808. Its totient is φ = 16387320.

The previous prime is 18026059. The next prime is 18026087. The reversal of 18026063 is 36062081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36062081 = 11 ⋅3278371.

It is a cyclic number.

It is not a de Polignac number, because 18026063 - 2² = 18026059 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 (18026053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 819356 + ... + 819377.

It is an arithmetic number, because the mean of its divisors is an integer number (4916202).

Almost surely, 2^18026063 is an apocalyptic number.

18026063 is a deficient number, since it is larger than the sum of its proper divisors (1638745).

18026063 is a wasteful number, since it uses less digits than its factorization.

18026063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638744.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 18026063 is about 4245.7111300700. The cubic root of 18026063 is about 262.2005680181.

The spelling of 18026063 in words is "eighteen million, twenty-six thousand, sixty-three".