27836961 has 4 divisors (see below), whose sum is σ = 37115952. Its totient is φ = 18557972.

The previous prime is 27836951. The next prime is 27836971. The reversal of 27836961 is 16963872.

It is a happy number.

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 an interprime number because it is at equal distance from previous prime (27836951) and next prime (27836971).

It is a cyclic number.

It is not a de Polignac number, because 27836961 - 2⁵ = 27836929 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (27836951) 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, 4639491 + ... + 4639496.

It is an arithmetic number, because the mean of its divisors is an integer number (9278988).

Almost surely, 2^27836961 is an apocalyptic number.

It is an amenable number.

27836961 is a deficient number, since it is larger than the sum of its proper divisors (9278991).

27836961 is an equidigital number, since it uses as much as digits as its factorization.

27836961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9278990.

The product of its digits is 108864, while the sum is 42.

The square root of 27836961 is about 5276.0743929554. The cubic root of 27836961 is about 303.0683656691.

The spelling of 27836961 in words is "twenty-seven million, eight hundred thirty-six thousand, nine hundred sixty-one".