27198004 has 6 divisors (see below), whose sum is σ = 47596514. Its totient is φ = 13599000.

The previous prime is 27198001. The next prime is 27198019. The reversal of 27198004 is 40089172.

It can be written as a sum of positive squares in only one way, i.e., 24029604 + 3168400 = 4902^2 + 1780^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27198001) 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, 3399747 + ... + 3399754.

Almost surely, 2^27198004 is an apocalyptic number.

It is an amenable number.

27198004 is a deficient number, since it is larger than the sum of its proper divisors (20398510).

27198004 is a wasteful number, since it uses less digits than its factorization.

27198004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6799505 (or 6799503 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 27198004 is about 5215.1705628867. The cubic root of 27198004 is about 300.7315627512.

The spelling of 27198004 in words is "twenty-seven million, one hundred ninety-eight thousand, four".