18053867 has 8 divisors (see below), whose sum is σ = 19810224. Its totient is φ = 16350048.

The previous prime is 18053843. The next prime is 18053909. The reversal of 18053867 is 76835081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18053867 - 2¹⁴ = 18037483 is a prime.

It is a super-2 number, since 2×18053867² = 651884227307378, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18053867.

It is not an unprimeable number, because it can be changed into a prime (18053807) 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, 12413 + ... + 13790.

It is an arithmetic number, because the mean of its divisors is an integer number (2476278).

Almost surely, 2^18053867 is an apocalyptic number.

18053867 is a deficient number, since it is larger than the sum of its proper divisors (1756357).

18053867 is a wasteful number, since it uses less digits than its factorization.

18053867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26269.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 18053867 is about 4248.9842315546. The cubic root of 18053867 is about 262.3353077293.

The spelling of 18053867 in words is "eighteen million, fifty-three thousand, eight hundred sixty-seven".