17987053 has 8 divisors (see below), whose sum is σ = 21638720. Its totient is φ = 14605920.

The previous prime is 17987033. The next prime is 17987059. The reversal of 17987053 is 35078971.

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

It is a de Polignac number, because none of the positive numbers 2^k-17987053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 17986997 and 17987015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17987059) 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, 67488 + ... + 67753.

It is an arithmetic number, because the mean of its divisors is an integer number (2704840).

Almost surely, 2^17987053 is an apocalyptic number.

It is an amenable number.

17987053 is a deficient number, since it is larger than the sum of its proper divisors (3651667).

17987053 is a wasteful number, since it uses less digits than its factorization.

17987053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135267.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 17987053 is about 4241.1145940660. The cubic root of 17987053 is about 262.0112896481.

The spelling of 17987053 in words is "seventeen million, nine hundred eighty-seven thousand, fifty-three".