27438001 has 4 divisors (see below), whose sum is σ = 27542592. Its totient is φ = 27333412.

The previous prime is 27437987. The next prime is 27438013. The reversal of 27438001 is 10083472.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27438001 - 2⁹ = 27437489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27438101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51901 + ... + 52426.

It is an arithmetic number, because the mean of its divisors is an integer number (6885648).

Almost surely, 2^27438001 is an apocalyptic number.

It is an amenable number.

27438001 is a deficient number, since it is larger than the sum of its proper divisors (104591).

27438001 is a wasteful number, since it uses less digits than its factorization.

27438001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104590.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 27438001 is about 5238.1295325717. The cubic root of 27438001 is about 301.6135320815.

The spelling of 27438001 in words is "twenty-seven million, four hundred thirty-eight thousand, one".