27001901 has 4 divisors (see below), whose sum is σ = 27016704. Its totient is φ = 26987100.

The previous prime is 27001889. The next prime is 27001913. The reversal of 27001901 is 10910072.

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 an interprime number because it is at equal distance from previous prime (27001889) and next prime (27001913).

It is a cyclic number.

It is not a de Polignac number, because 27001901 - 2²² = 22807597 is a prime.

It is a super-3 number, since 3×27001901³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27001921) 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, 4205 + ... + 8466.

It is an arithmetic number, because the mean of its divisors is an integer number (6754176).

Almost surely, 2^27001901 is an apocalyptic number.

It is an amenable number.

27001901 is a deficient number, since it is larger than the sum of its proper divisors (14803).

27001901 is a wasteful number, since it uses less digits than its factorization.

27001901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14802.

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 27001901 is about 5196.3353432972. The cubic root of 27001901 is about 300.0070405755.

Adding to 27001901 its reverse (10910072), we get a palindrome (37911973).

The spelling of 27001901 in words is "twenty-seven million, one thousand, nine hundred one".