18067965 has 16 divisors (see below), whose sum is σ = 29455488. Its totient is φ = 9454016.

The previous prime is 18067961. The next prime is 18067967. The reversal of 18067965 is 56976081.

It is a cyclic number.

It is not a de Polignac number, because 18067965 - 2² = 18067961 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18067961) 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, 10569 + ... + 12158.

It is an arithmetic number, because the mean of its divisors is an integer number (1840968).

Almost surely, 2^18067965 is an apocalyptic number.

18067965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18067965 is a deficient number, since it is larger than the sum of its proper divisors (11387523).

18067965 is a wasteful number, since it uses less digits than its factorization.

18067965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22788.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 18067965 is about 4250.6428925517. The cubic root of 18067965 is about 262.4035745612.

The spelling of 18067965 in words is "eighteen million, sixty-seven thousand, nine hundred sixty-five".