27730541 has 6 divisors (see below), whose sum is σ = 28131726. Its totient is φ = 27335000.

The previous prime is 27730537. The next prime is 27730543. The reversal of 27730541 is 14503772.

It can be written as a sum of positive squares in only one way, i.e., 27604516 + 126025 = 5254^2 + 355^2 .

It is not a de Polignac number, because 27730541 - 2² = 27730537 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 (27730543) 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 5 ways as a sum of consecutive naturals, for example, 2291 + ... + 7791.

It is an arithmetic number, because the mean of its divisors is an integer number (4688621).

Almost surely, 2^27730541 is an apocalyptic number.

It is an amenable number.

27730541 is a deficient number, since it is larger than the sum of its proper divisors (401185).

27730541 is an frugal number, since it uses more digits than its factorization.

27730541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5643 (or 5572 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 27730541 is about 5265.9795859840. The cubic root of 27730541 is about 302.6816648938.

The spelling of 27730541 in words is "twenty-seven million, seven hundred thirty thousand, five hundred forty-one".