27920472 has 16 divisors (see below), whose sum is σ = 69801240. Its totient is φ = 9306816.

The previous prime is 27920471. The next prime is 27920483. The reversal of 27920472 is 27402972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27920471) 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, 581653 + ... + 581700.

Almost surely, 2^27920472 is an apocalyptic number.

It is an amenable number.

27920472 is an abundant number, since it is smaller than the sum of its proper divisors (41880768).

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

27920472 is a wasteful number, since it uses less digits than its factorization.

27920472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163362 (or 1163358 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 27920472 is about 5283.9825889191. The cubic root of 27920472 is about 303.3711318942.

The spelling of 27920472 in words is "twenty-seven million, nine hundred twenty thousand, four hundred seventy-two".