27780103 has 8 divisors (see below), whose sum is σ = 29960000. Its totient is φ = 25606368.

The previous prime is 27780097. The next prime is 27780127. The reversal of 27780103 is 30108772.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27780103 - 2¹³ = 27771911 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 (27786103) 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 7 ways as a sum of consecutive naturals, for example, 12898 + ... + 14896.

It is an arithmetic number, because the mean of its divisors is an integer number (3745000).

Almost surely, 2^27780103 is an apocalyptic number.

27780103 is a deficient number, since it is larger than the sum of its proper divisors (2179897).

27780103 is a wasteful number, since it uses less digits than its factorization.

27780103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3081.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 27780103 is about 5270.6833522799. The cubic root of 27780103 is about 302.8618823213.

Adding to 27780103 its reverse (30108772), we get a palindrome (57888875).

The spelling of 27780103 in words is "twenty-seven million, seven hundred eighty thousand, one hundred three".