18065707 has 12 divisors (see below), whose sum is σ = 20221128. Its totient is φ = 16006400.

The previous prime is 18065693. The next prime is 18065711. The reversal of 18065707 is 70756081.

It is not a de Polignac number, because 18065707 - 2¹⁵ = 18032939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18065717) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18003 + ... + 18979.

It is an arithmetic number, because the mean of its divisors is an integer number (1685094).

Almost surely, 2^18065707 is an apocalyptic number.

18065707 is a deficient number, since it is larger than the sum of its proper divisors (2155421).

18065707 is an equidigital number, since it uses as much as digits as its factorization.

18065707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070 (or 1029 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 34.

The square root of 18065707 is about 4250.3772773720. The cubic root of 18065707 is about 262.3926430229.

The spelling of 18065707 in words is "eighteen million, sixty-five thousand, seven hundred seven".