27907137 has 12 divisors (see below), whose sum is σ = 40363284. Its totient is φ = 18580320.

The previous prime is 27907133. The next prime is 27907141. The reversal of 27907137 is 73170972.

It is an interprime number because it is at equal distance from previous prime (27907133) and next prime (27907141).

It can be written as a sum of positive squares in 2 ways, for example, as 11553201 + 16353936 = 3399^2 + 4044^2 .

It is not a de Polignac number, because 27907137 - 2² = 27907133 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27907133) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 7587 + ... + 10647.

It is an arithmetic number, because the mean of its divisors is an integer number (3363607).

Almost surely, 2^27907137 is an apocalyptic number.

It is an amenable number.

27907137 is a deficient number, since it is larger than the sum of its proper divisors (12456147).

27907137 is a wasteful number, since it uses less digits than its factorization.

27907137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4080 (or 4077 counting only the distinct ones).

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

The square root of 27907137 is about 5282.7206059000. The cubic root of 27907137 is about 303.3228268577.

The spelling of 27907137 in words is "twenty-seven million, nine hundred seven thousand, one hundred thirty-seven".