27798016 has 20 divisors (see below), whose sum is σ = 55542762. Its totient is φ = 13898752.

The previous prime is 27798013. The next prime is 27798019. The reversal of 27798016 is 61089772.

It is an interprime number because it is at equal distance from previous prime (27798013) and next prime (27798019).

It can be written as a sum of positive squares in only one way, i.e., 14137600 + 13660416 = 3760^2 + 3696^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 27798016.

It is not an unprimeable number, because it can be changed into a prime (27798011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26635 + ... + 27658.

Almost surely, 2^27798016 is an apocalyptic number.

It is an amenable number.

27798016 is a deficient number, since it is larger than the sum of its proper divisors (27744746).

27798016 is an frugal number, since it uses more digits than its factorization.

27798016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54311 (or 54295 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 27798016 is about 5272.3823837047. The cubic root of 27798016 is about 302.9269648642.

The spelling of 27798016 in words is "twenty-seven million, seven hundred ninety-eight thousand, sixteen".