27670073 has 6 divisors (see below), whose sum is σ = 28592442. Its totient is φ = 26776560.

The previous prime is 27670057. The next prime is 27670103. The reversal of 27670073 is 37007672.

It can be written as a sum of positive squares in only one way, i.e., 21049744 + 6620329 = 4588^2 + 2573^2 .

It is not a de Polignac number, because 27670073 - 2⁴ = 27670057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27670273) 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, 13436 + ... + 15357.

It is an arithmetic number, because the mean of its divisors is an integer number (4765407).

Almost surely, 2^27670073 is an apocalyptic number.

It is an amenable number.

27670073 is a deficient number, since it is larger than the sum of its proper divisors (922369).

27670073 is an equidigital number, since it uses as much as digits as its factorization.

27670073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28855 (or 28824 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 32.

The square root of 27670073 is about 5260.2350707929. The cubic root of 27670073 is about 302.4615000065.

The spelling of 27670073 in words is "twenty-seven million, six hundred seventy thousand, seventy-three".