27312004 has 12 divisors (see below), whose sum is σ = 47880000. Its totient is φ = 13632008.

The previous prime is 27311989. The next prime is 27312007. The reversal of 27312004 is 40021372.

It is not an unprimeable number, because it can be changed into a prime (27312007) 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, 3304 + ... + 8095.

It is an arithmetic number, because the mean of its divisors is an integer number (3990000).

Almost surely, 2^27312004 is an apocalyptic number.

It is an amenable number.

27312004 is a deficient number, since it is larger than the sum of its proper divisors (20567996).

27312004 is a wasteful number, since it uses less digits than its factorization.

27312004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12002 (or 12000 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 27312004 is about 5226.0887860808. The cubic root of 27312004 is about 301.1511475847.

Adding to 27312004 its reverse (40021372), we get a palindrome (67333376).

The spelling of 27312004 in words is "twenty-seven million, three hundred twelve thousand, four".