18063897 has 16 divisors (see below), whose sum is σ = 25026240. Its totient is φ = 11575872.

The previous prime is 18063887. The next prime is 18063907. The reversal of 18063897 is 79836081.

It is an interprime number because it is at equal distance from previous prime (18063887) and next prime (18063907).

It is not a de Polignac number, because 18063897 - 2⁶ = 18063833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18063887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34278 + ... + 34800.

It is an arithmetic number, because the mean of its divisors is an integer number (1564140).

Almost surely, 2^18063897 is an apocalyptic number.

It is an amenable number.

18063897 is a deficient number, since it is larger than the sum of its proper divisors (6962343).

18063897 is a wasteful number, since it uses less digits than its factorization.

18063897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 18063897 is about 4250.1643497634. The cubic root of 18063897 is about 262.3838797060.

The spelling of 18063897 in words is "eighteen million, sixty-three thousand, eight hundred ninety-seven".