27930747 has 8 divisors (see below), whose sum is σ = 40105744. Its totient is φ = 17188128.

The previous prime is 27930733. The next prime is 27930751. The reversal of 27930747 is 74703972.

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

It is not a de Polignac number, because 27930747 - 2⁴ = 27930731 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 716173 = 27930747 / (2 + 7 + 9 + 3 + 0 + 7 + 4 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27930757) 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 7 ways as a sum of consecutive naturals, for example, 358048 + ... + 358125.

It is an arithmetic number, because the mean of its divisors is an integer number (5013218).

Almost surely, 2^27930747 is an apocalyptic number.

27930747 is a deficient number, since it is larger than the sum of its proper divisors (12174997).

27930747 is a wasteful number, since it uses less digits than its factorization.

27930747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716189.

The product of its (nonzero) digits is 74088, while the sum is 39.

The square root of 27930747 is about 5284.9547774792. The cubic root of 27930747 is about 303.4083418201.

It can be divided in two parts, 27 and 930747, that multiplied together give a square (25130169 = 5013²).

The spelling of 27930747 in words is "twenty-seven million, nine hundred thirty thousand, seven hundred forty-seven".