27630427 has 16 divisors (see below), whose sum is σ = 32181120. Its totient is φ = 23457600.

The previous prime is 27630419. The next prime is 27630479. The reversal of 27630427 is 72403672.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 27630427 - 2³ = 27630419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27630497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14352 + ... + 16162.

It is an arithmetic number, because the mean of its divisors is an integer number (2011320).

Almost surely, 2^27630427 is an apocalyptic number.

27630427 is a deficient number, since it is larger than the sum of its proper divisors (4550693).

27630427 is a wasteful number, since it uses less digits than its factorization.

27630427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 27630427 is about 5256.4652571857. The cubic root of 27630427 is about 302.3169741822.

It can be divided in two parts, 276 and 30427, that added together give a palindrome (30703).

The spelling of 27630427 in words is "twenty-seven million, six hundred thirty thousand, four hundred twenty-seven".