27627428 has 6 divisors (see below), whose sum is σ = 48348006. Its totient is φ = 13813712.

The previous prime is 27627427. The next prime is 27627433. The reversal of 27627428 is 82472672.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 19998784 + 7628644 = 4472^2 + 2762^2 .

It is a junction number, because it is equal to n+sod(n) for n = 27627391 and 27627400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27627421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3453425 + ... + 3453432.

It is an arithmetic number, because the mean of its divisors is an integer number (8058001).

Almost surely, 2^27627428 is an apocalyptic number.

It is an amenable number.

27627428 is a deficient number, since it is larger than the sum of its proper divisors (20720578).

27627428 is a wasteful number, since it uses less digits than its factorization.

27627428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6906861 (or 6906859 counting only the distinct ones).

The product of its digits is 75264, while the sum is 38.

The square root of 27627428 is about 5256.1799816977. The cubic root of 27627428 is about 302.3060359822.

The spelling of 27627428 in words is "twenty-seven million, six hundred twenty-seven thousand, four hundred twenty-eight".