27072001 has 4 divisors (see below), whose sum is σ = 29533104. Its totient is φ = 24610900.

The previous prime is 27071999. The next prime is 27072011. The reversal of 27072001 is 10027072.

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 27072001 - 2¹ = 27071999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27072001.

It is not an unprimeable number, because it can be changed into a prime (27072011) 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, 1230535 + ... + 1230556.

It is an arithmetic number, because the mean of its divisors is an integer number (7383276).

Almost surely, 2^27072001 is an apocalyptic number.

It is an amenable number.

27072001 is a deficient number, since it is larger than the sum of its proper divisors (2461103).

27072001 is a wasteful number, since it uses less digits than its factorization.

27072001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2461102.

The product of its (nonzero) digits is 196, while the sum is 19.

The square root of 27072001 is about 5203.0761093799. The cubic root of 27072001 is about 300.2664336773.

Adding to 27072001 its reverse (10027072), we get a palindrome (37099073).

The spelling of 27072001 in words is "twenty-seven million, seventy-two thousand, one".