27790317 has 16 divisors (see below), whose sum is σ = 41327680. Its totient is φ = 18456336.

The previous prime is 27790307. The next prime is 27790351. The reversal of 27790317 is 71309772.

It is not a de Polignac number, because 27790317 - 2⁶ = 27790253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27790307) 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 in 15 ways as a sum of consecutive naturals, for example, 5823 + ... + 9459.

It is an arithmetic number, because the mean of its divisors is an integer number (2582980).

Almost surely, 2^27790317 is an apocalyptic number.

27790317 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

27790317 is a deficient number, since it is larger than the sum of its proper divisors (13537363).

27790317 is a wasteful number, since it uses less digits than its factorization.

27790317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3929 (or 3923 counting only the distinct ones).

The product of its (nonzero) digits is 18522, while the sum is 36.

The square root of 27790317 is about 5271.6522077998. The cubic root of 27790317 is about 302.8989958412.

The spelling of 27790317 in words is "twenty-seven million, seven hundred ninety thousand, three hundred seventeen".