27948137 has 16 divisors (see below), whose sum is σ = 32554752. Its totient is φ = 23500800.

The previous prime is 27948133. The next prime is 27948139. The reversal of 27948137 is 73184972.

It is a cyclic number.

It is not a de Polignac number, because 27948137 - 2² = 27948133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27948094 and 27948103.

It is not an unprimeable number, because it can be changed into a prime (27948131) 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, 144713 + ... + 144905.

It is an arithmetic number, because the mean of its divisors is an integer number (2034672).

Almost surely, 2^27948137 is an apocalyptic number.

It is an amenable number.

27948137 is a deficient number, since it is larger than the sum of its proper divisors (4606615).

27948137 is a wasteful number, since it uses less digits than its factorization.

27948137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488.

The product of its digits is 84672, while the sum is 41.

The square root of 27948137 is about 5286.5997578784. The cubic root of 27948137 is about 303.4712972484.

The spelling of 27948137 in words is "twenty-seven million, nine hundred forty-eight thousand, one hundred thirty-seven".