27128201 has 8 divisors (see below), whose sum is σ = 28388544. Its totient is φ = 25874640.

The previous prime is 27128191. The next prime is 27128203. The reversal of 27128201 is 10282172.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27128201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27128203) 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, 7646 + ... + 10616.

It is an arithmetic number, because the mean of its divisors is an integer number (3548568).

It is a Poulet number, since it divides 2^27128200-1.

Almost surely, 2^27128201 is an apocalyptic number.

It is an amenable number.

27128201 is a deficient number, since it is larger than the sum of its proper divisors (1260343).

27128201 is a wasteful number, since it uses less digits than its factorization.

27128201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3391.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 27128201 is about 5208.4739607682. The cubic root of 27128201 is about 300.4740689859.

The spelling of 27128201 in words is "twenty-seven million, one hundred twenty-eight thousand, two hundred one".