18854969 has 8 divisors (see below), whose sum is σ = 21577920. Its totient is φ = 16139376.

The previous prime is 18854881. The next prime is 18854971. The reversal of 18854969 is 96945881.

It is a happy number.

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 18854969 - 2¹² = 18850873 is a prime.

It is a super-2 number, since 2×18854969² = 711019711981922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18854999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5762 + ... + 8420.

It is an arithmetic number, because the mean of its divisors is an integer number (2697240).

Almost surely, 2^18854969 is an apocalyptic number.

It is an amenable number.

18854969 is a deficient number, since it is larger than the sum of its proper divisors (2722951).

18854969 is a wasteful number, since it uses less digits than its factorization.

18854969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3679.

The product of its digits is 622080, while the sum is 50.

The square root of 18854969 is about 4342.2308782468. The cubic root of 18854969 is about 266.1594809367.

The spelling of 18854969 in words is "eighteen million, eight hundred fifty-four thousand, nine hundred sixty-nine".