27201427 has 4 divisors (see below), whose sum is σ = 29674296. Its totient is φ = 24728560.

The previous prime is 27201403. The next prime is 27201439. The reversal of 27201427 is 72410272.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27201427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27201467) 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, 1236418 + ... + 1236439.

It is an arithmetic number, because the mean of its divisors is an integer number (7418574).

Almost surely, 2^27201427 is an apocalyptic number.

27201427 is a deficient number, since it is larger than the sum of its proper divisors (2472869).

27201427 is a wasteful number, since it uses less digits than its factorization.

27201427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2472868.

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 27201427 is about 5215.4987297477. The cubic root of 27201427 is about 300.7441783946.

Adding to 27201427 its reverse (72410272), we get a palindrome (99611699).

The spelling of 27201427 in words is "twenty-seven million, two hundred one thousand, four hundred twenty-seven".