27630393 has 16 divisors (see below), whose sum is σ = 43462656. Its totient is φ = 15279120.

The previous prime is 27630373. The next prime is 27630397. The reversal of 27630393 is 39303672.

It is not a de Polignac number, because 27630393 - 2¹² = 27626297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27630397) 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, 20571 + ... + 21872.

It is an arithmetic number, because the mean of its divisors is an integer number (2716416).

Almost surely, 2^27630393 is an apocalyptic number.

It is an amenable number.

27630393 is a deficient number, since it is larger than the sum of its proper divisors (15832263).

27630393 is a wasteful number, since it uses less digits than its factorization.

27630393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42484.

The product of its (nonzero) digits is 20412, while the sum is 33.

The square root of 27630393 is about 5256.4620230722. The cubic root of 27630393 is about 302.3168501791.

It can be divided in two parts, 276303 and 93, that added together give a triangular number (276396 = T₇₄₃).

The spelling of 27630393 in words is "twenty-seven million, six hundred thirty thousand, three hundred ninety-three".