27117901 has 4 divisors (see below), whose sum is σ = 27992704. Its totient is φ = 26243100.

The previous prime is 27117899. The next prime is 27117911. The reversal of 27117901 is 10971172.

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 27117901 - 2¹ = 27117899 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 27117901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27117911) 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, 437355 + ... + 437416.

It is an arithmetic number, because the mean of its divisors is an integer number (6998176).

Almost surely, 2^27117901 is an apocalyptic number.

It is an amenable number.

27117901 is a deficient number, since it is larger than the sum of its proper divisors (874803).

27117901 is an equidigital number, since it uses as much as digits as its factorization.

27117901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874802.

The product of its (nonzero) digits is 882, while the sum is 28.

The square root of 27117901 is about 5207.4850935936. The cubic root of 27117901 is about 300.4360363045.

The spelling of 27117901 in words is "twenty-seven million, one hundred seventeen thousand, nine hundred one".