18896669 has 8 divisors (see below), whose sum is σ = 20646912. Its totient is φ = 17151840.

The previous prime is 18896629. The next prime is 18896681. The reversal of 18896669 is 96669881.

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 18896669 - 2²⁰ = 17848093 is a prime.

It is a super-2 number, since 2×18896669² = 714168198591122, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18896669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18896609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10532 + ... + 12194.

It is an arithmetic number, because the mean of its divisors is an integer number (2580864).

Almost surely, 2^18896669 is an apocalyptic number.

It is an amenable number.

18896669 is a deficient number, since it is larger than the sum of its proper divisors (1750243).

18896669 is a wasteful number, since it uses less digits than its factorization.

18896669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2707.

The product of its digits is 1119744, while the sum is 53.

The square root of 18896669 is about 4347.0299055792. The cubic root of 18896669 is about 266.3555508826.

It can be divided in two parts, 1889 and 6669, that added together give a palindrome (8558).

The spelling of 18896669 in words is "eighteen million, eight hundred ninety-six thousand, six hundred sixty-nine".