27061601 has 4 divisors (see below), whose sum is σ = 30927552. Its totient is φ = 23195652.

The previous prime is 27061597. The next prime is 27061609. The reversal of 27061601 is 10616072.

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 27061601 - 2² = 27061597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27061609) 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, 1932965 + ... + 1932978.

It is an arithmetic number, because the mean of its divisors is an integer number (7731888).

Almost surely, 2^27061601 is an apocalyptic number.

It is an amenable number.

27061601 is a deficient number, since it is larger than the sum of its proper divisors (3865951).

27061601 is an equidigital number, since it uses as much as digits as its factorization.

27061601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3865950.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 27061601 is about 5202.0766045878. The cubic root of 27061601 is about 300.2279785606.

Adding to 27061601 its reverse (10616072), we get a palindrome (37677673).

The spelling of 27061601 in words is "twenty-seven million, sixty-one thousand, six hundred one".