27920604 has 12 divisors (see below), whose sum is σ = 65148104. Its totient is φ = 9306864.

The previous prime is 27920603. The next prime is 27920609. The reversal of 27920604 is 40602972.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27920603) 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 in 3 ways as a sum of consecutive naturals, for example, 1163347 + ... + 1163370.

Almost surely, 2^27920604 is an apocalyptic number.

It is an amenable number.

27920604 is an abundant number, since it is smaller than the sum of its proper divisors (37227500).

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

27920604 is a wasteful number, since it uses less digits than its factorization.

27920604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2326724 (or 2326722 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 27920604 is about 5283.9950794829. The cubic root of 27920604 is about 303.3716099775.

The spelling of 27920604 in words is "twenty-seven million, nine hundred twenty thousand, six hundred four".