27664004 has 6 divisors (see below), whose sum is σ = 48412014. Its totient is φ = 13832000.

The previous prime is 27664003. The next prime is 27664027. The reversal of 27664004 is 40046672.

It can be written as a sum of positive squares in only one way, i.e., 27541504 + 122500 = 5248^2 + 350^2 .

It is not an unprimeable number, because it can be changed into a prime (27664003) by changing a digit.

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 as a sum of consecutive naturals, namely, 3457997 + ... + 3458004.

It is an arithmetic number, because the mean of its divisors is an integer number (8068669).

Almost surely, 2^27664004 is an apocalyptic number.

It is an amenable number.

27664004 is a deficient number, since it is larger than the sum of its proper divisors (20748010).

27664004 is a wasteful number, since it uses less digits than its factorization.

27664004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6916005 (or 6916003 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 27664004 is about 5259.6581637973. The cubic root of 27664004 is about 302.4393849816.

The spelling of 27664004 in words is "twenty-seven million, six hundred sixty-four thousand, four".