27620028 has 30 divisors (see below), whose sum is σ = 72205056. Its totient is φ = 9206568.

The previous prime is 27620023. The next prime is 27620041. The reversal of 27620028 is 82002672.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 27619983 and 27620010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27620023) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 42300 + ... + 42947.

Almost surely, 2^27620028 is an apocalyptic number.

It is an amenable number.

27620028 is an abundant number, since it is smaller than the sum of its proper divisors (44585028).

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

27620028 is a wasteful number, since it uses less digits than its factorization.

27620028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85263 (or 85252 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 27620028 is about 5255.4760012771. The cubic root of 27620028 is about 302.2790427055.

The spelling of 27620028 in words is "twenty-seven million, six hundred twenty thousand, twenty-eight".