27072947 has 8 divisors (see below), whose sum is σ = 29573040. Its totient is φ = 24579360.

The previous prime is 27072919. The next prime is 27072953. The reversal of 27072947 is 74927072.

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 27072947 - 2⁶ = 27072883 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27072947.

It is not an unprimeable number, because it can be changed into a prime (27072547) 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, 12329 + ... + 14357.

It is an arithmetic number, because the mean of its divisors is an integer number (3696630).

Almost surely, 2^27072947 is an apocalyptic number.

27072947 is a deficient number, since it is larger than the sum of its proper divisors (2500093).

27072947 is a wasteful number, since it uses less digits than its factorization.

27072947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3253.

The product of its (nonzero) digits is 49392, while the sum is 38.

The square root of 27072947 is about 5203.1670163469. The cubic root of 27072947 is about 300.2699311252.

The spelling of 27072947 in words is "twenty-seven million, seventy-two thousand, nine hundred forty-seven".