27312006 has 16 divisors (see below), whose sum is σ = 57499200. Its totient is φ = 8624808.

The previous prime is 27311989. The next prime is 27312007. The reversal of 27312006 is 60021372.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27312007) 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 7 ways as a sum of consecutive naturals, for example, 119676 + ... + 119903.

It is an arithmetic number, because the mean of its divisors is an integer number (3593700).

Almost surely, 2^27312006 is an apocalyptic number.

27312006 is an abundant number, since it is smaller than the sum of its proper divisors (30187194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27312006 is a wasteful number, since it uses less digits than its factorization.

27312006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239603.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 27312006 is about 5226.0889774285. The cubic root of 27312006 is about 301.1511549356.

Adding to 27312006 its reverse (60021372), we get a palindrome (87333378).

The spelling of 27312006 in words is "twenty-seven million, three hundred twelve thousand, six".