27672861 has 8 divisors (see below), whose sum is σ = 37072864. Its totient is φ = 18360720.

The previous prime is 27672851. The next prime is 27672871. The reversal of 27672861 is 16827672.

It is an interprime number because it is at equal distance from previous prime (27672851) and next prime (27672871).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27672861 - 2¹⁰ = 27671837 is a prime.

It is the 5261-st Hogben number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27672851) by changing a digit.

It is a nontrivial repunit in base 5260.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21226 + ... + 22491.

It is an arithmetic number, because the mean of its divisors is an integer number (4634108).

Almost surely, 2^27672861 is an apocalyptic number.

It is an amenable number.

27672861 is a deficient number, since it is larger than the sum of its proper divisors (9400003).

27672861 is a wasteful number, since it uses less digits than its factorization.

27672861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43931.

The product of its digits is 56448, while the sum is 39.

The square root of 27672861 is about 5260.5000712860. The cubic root of 27672861 is about 302.4716582057.

It can be divided in two parts, 276 and 72861, that added together give a palindrome (73137).

The spelling of 27672861 in words is "twenty-seven million, six hundred seventy-two thousand, eight hundred sixty-one".