27630897 has 32 divisors (see below), whose sum is σ = 44301312. Its totient is φ = 14986944.

The previous prime is 27630893. The next prime is 27630929. The reversal of 27630897 is 79803672.

It is not a de Polignac number, because 27630897 - 2² = 27630893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27630893) 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 31 ways as a sum of consecutive naturals, for example, 32998 + ... + 33824.

It is an arithmetic number, because the mean of its divisors is an integer number (1384416).

Almost surely, 2^27630897 is an apocalyptic number.

It is an amenable number.

27630897 is a deficient number, since it is larger than the sum of its proper divisors (16670415).

27630897 is a wasteful number, since it uses less digits than its factorization.

27630897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 27630897 is about 5256.5099638448. The cubic root of 27630897 is about 302.3186883332.

The spelling of 27630897 in words is "twenty-seven million, six hundred thirty thousand, eight hundred ninety-seven".