27047830 has 16 divisors (see below), whose sum is σ = 51248880. Its totient is φ = 10249632.

The previous prime is 27047767. The next prime is 27047831. The reversal of 27047830 is 3874072.

It is a junction number, because it is equal to n+sod(n) for n = 27047792 and 27047801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27047831) 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, 70989 + ... + 71368.

It is an arithmetic number, because the mean of its divisors is an integer number (3203055).

Almost surely, 2^27047830 is an apocalyptic number.

27047830 is a deficient number, since it is larger than the sum of its proper divisors (24201050).

27047830 is a wasteful number, since it uses less digits than its factorization.

27047830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142383.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 27047830 is about 5200.7528301199. The cubic root of 27047830 is about 300.1770436461.

The spelling of 27047830 in words is "twenty-seven million, forty-seven thousand, eight hundred thirty".