27797461 has 4 divisors (see below), whose sum is σ = 27820800. Its totient is φ = 27774124.

The previous prime is 27797453. The next prime is 27797489. The reversal of 27797461 is 16479772.

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 27797461 - 2³ = 27797453 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 (27797411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9781 + ... + 12298.

It is an arithmetic number, because the mean of its divisors is an integer number (6955200).

Almost surely, 2^27797461 is an apocalyptic number.

It is an amenable number.

27797461 is a deficient number, since it is larger than the sum of its proper divisors (23339).

27797461 is a wasteful number, since it uses less digits than its factorization.

27797461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23338.

The product of its digits is 148176, while the sum is 43.

The square root of 27797461 is about 5272.3297506890. The cubic root of 27797461 is about 302.9249488261.

The spelling of 27797461 in words is "twenty-seven million, seven hundred ninety-seven thousand, four hundred sixty-one".