27428616 has 48 divisors (see below), whose sum is σ = 78659100. Its totient is φ = 8604672.

The previous prime is 27428579. The next prime is 27428617. The reversal of 27428616 is 61682472.

It can be written as a sum of positive squares in 2 ways, for example, as 26563716 + 864900 = 5154^2 + 930^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (27428617) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9981 + ... + 12428.

Almost surely, 2^27428616 is an apocalyptic number.

It is an amenable number.

27428616 is an abundant number, since it is smaller than the sum of its proper divisors (51230484).

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

27428616 is a wasteful number, since it uses less digits than its factorization.

27428616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22438 (or 22431 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 27428616 is about 5237.2336209109. The cubic root of 27428616 is about 301.5791398069.

The spelling of 27428616 in words is "twenty-seven million, four hundred twenty-eight thousand, six hundred sixteen".