27630345 has 8 divisors (see below), whose sum is σ = 44208576. Its totient is φ = 14736176.

The previous prime is 27630341. The next prime is 27630367. The reversal of 27630345 is 54303672.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27630345 - 2² = 27630341 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27630341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 920997 + ... + 921026.

It is an arithmetic number, because the mean of its divisors is an integer number (5526072).

Almost surely, 2^27630345 is an apocalyptic number.

It is an amenable number.

27630345 is a deficient number, since it is larger than the sum of its proper divisors (16578231).

27630345 is a wasteful number, since it uses less digits than its factorization.

27630345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842031.

The product of its (nonzero) digits is 15120, while the sum is 30.

The square root of 27630345 is about 5256.4574572615. The cubic root of 27630345 is about 302.3166751156.

The spelling of 27630345 in words is "twenty-seven million, six hundred thirty thousand, three hundred forty-five".