27701628 has 12 divisors (see below), whose sum is σ = 64637160. Its totient is φ = 9233872.

The previous prime is 27701623. The next prime is 27701629. The reversal of 27701628 is 82610772.

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 (27701623) 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, 1154223 + ... + 1154246.

It is an arithmetic number, because the mean of its divisors is an integer number (5386430).

Almost surely, 2^27701628 is an apocalyptic number.

It is an amenable number.

27701628 is an abundant number, since it is smaller than the sum of its proper divisors (36935532).

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

27701628 is a wasteful number, since it uses less digits than its factorization.

27701628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2308476 (or 2308474 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 27701628 is about 5263.2336068239. The cubic root of 27701628 is about 302.5764322038.

The spelling of 27701628 in words is "twenty-seven million, seven hundred one thousand, six hundred twenty-eight".