27391016 has 8 divisors (see below), whose sum is σ = 51358170. Its totient is φ = 13695504.

The previous prime is 27391003. The next prime is 27391031. The reversal of 27391016 is 61019372.

It can be written as a sum of positive squares in only one way, i.e., 16434916 + 10956100 = 4054^2 + 3310^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 27391016.

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 as a sum of consecutive naturals, namely, 1711931 + ... + 1711946.

Almost surely, 2^27391016 is an apocalyptic number.

It is an amenable number.

27391016 is a deficient number, since it is larger than the sum of its proper divisors (23967154).

27391016 is a wasteful number, since it uses less digits than its factorization.

27391016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3423883 (or 3423879 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 27391016 is about 5233.6427084775. The cubic root of 27391016 is about 301.4412721013.

The spelling of 27391016 in words is "twenty-seven million, three hundred ninety-one thousand, sixteen".