27797101 has 4 divisors (see below), whose sum is σ = 28548412. Its totient is φ = 27045792.

The previous prime is 27797093. The next prime is 27797113. The reversal of 27797101 is 10179772.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22553001 + 5244100 = 4749^2 + 2290^2 .

It is a cyclic number.

It is not a de Polignac number, because 27797101 - 2³ = 27797093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27797191) 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, 375600 + ... + 375673.

It is an arithmetic number, because the mean of its divisors is an integer number (7137103).

Almost surely, 2^27797101 is an apocalyptic number.

It is an amenable number.

27797101 is a deficient number, since it is larger than the sum of its proper divisors (751311).

27797101 is an equidigital number, since it uses as much as digits as its factorization.

27797101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751310.

The product of its (nonzero) digits is 6174, while the sum is 34.

The square root of 27797101 is about 5272.2956100735. The cubic root of 27797101 is about 302.9236411113.

The spelling of 27797101 in words is "twenty-seven million, seven hundred ninety-seven thousand, one hundred one".