18886001 has 4 divisors (see below), whose sum is σ = 19006452. Its totient is φ = 18765552.

The previous prime is 18885991. The next prime is 18886003. The reversal of 18886001 is 10068881.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10336225 + 8549776 = 3215^2 + 2924^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18886001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18886003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59990 + ... + 60303.

It is an arithmetic number, because the mean of its divisors is an integer number (4751613).

Almost surely, 2^18886001 is an apocalyptic number.

It is an amenable number.

18886001 is a deficient number, since it is larger than the sum of its proper divisors (120451).

18886001 is a wasteful number, since it uses less digits than its factorization.

18886001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120450.

The product of its (nonzero) digits is 3072, while the sum is 32.

The square root of 18886001 is about 4345.8026876516. The cubic root of 18886001 is about 266.3054183099.

The spelling of 18886001 in words is "eighteen million, eight hundred eighty-six thousand, one".