27663430 has 48 divisors (see below), whose sum is σ = 53766720. Its totient is φ = 10243584.

The previous prime is 27663421. The next prime is 27663443. The reversal of 27663430 is 3436672.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 27663392 and 27663401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 285142 + ... + 285238.

It is an arithmetic number, because the mean of its divisors is an integer number (1120140).

Almost surely, 2^27663430 is an apocalyptic number.

27663430 is a deficient number, since it is larger than the sum of its proper divisors (26103290).

27663430 is a wasteful number, since it uses less digits than its factorization.

27663430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 31.

The square root of 27663430 is about 5259.6035972305. The cubic root of 27663430 is about 302.4372931970.

The spelling of 27663430 in words is "twenty-seven million, six hundred sixty-three thousand, four hundred thirty".