27797801 has 4 divisors (see below), whose sum is σ = 27823104. Its totient is φ = 27772500.

The previous prime is 27797753. The next prime is 27797827. The reversal of 27797801 is 10879772.

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 27797801 - 2¹⁰ = 27796777 is a prime.

It is a super-3 number, since 3×27797801³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27797881) 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, 10925 + ... + 13226.

It is an arithmetic number, because the mean of its divisors is an integer number (6955776).

Almost surely, 2^27797801 is an apocalyptic number.

It is an amenable number.

27797801 is a deficient number, since it is larger than the sum of its proper divisors (25303).

27797801 is a wasteful number, since it uses less digits than its factorization.

27797801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25302.

The product of its (nonzero) digits is 49392, while the sum is 41.

The square root of 27797801 is about 5272.3619944006. The cubic root of 27797801 is about 302.9261838797.

The spelling of 27797801 in words is "twenty-seven million, seven hundred ninety-seven thousand, eight hundred one".