27438331 has 8 divisors (see below), whose sum is σ = 27812160. Its totient is φ = 27066888.

The previous prime is 27438329. The next prime is 27438347. The reversal of 27438331 is 13383472.

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 27438331 - 2¹ = 27438329 is a prime.

It is a super-2 number, since 2×27438331² = 1505724016131122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27438293 and 27438302.

It is not an unprimeable number, because it can be changed into a prime (27438311) 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, 36760 + ... + 37498.

It is an arithmetic number, because the mean of its divisors is an integer number (3476520).

Almost surely, 2^27438331 is an apocalyptic number.

27438331 is a deficient number, since it is larger than the sum of its proper divisors (373829).

27438331 is a wasteful number, since it uses less digits than its factorization.

27438331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193.

The product of its digits is 12096, while the sum is 31.

The square root of 27438331 is about 5238.1610322708. The cubic root of 27438331 is about 301.6147412568.

The spelling of 27438331 in words is "twenty-seven million, four hundred thirty-eight thousand, three hundred thirty-one".