27312738 has 8 divisors (see below), whose sum is σ = 54625488. Its totient is φ = 9104244.

The previous prime is 27312679. The next prime is 27312757. The reversal of 27312738 is 83721372.

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

27312738 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 27312699 and 27312708.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2276056 + ... + 2276067.

It is an arithmetic number, because the mean of its divisors is an integer number (6828186).

Almost surely, 2^27312738 is an apocalyptic number.

27312738 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27312738 is a wasteful number, since it uses less digits than its factorization.

27312738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4552128.

The product of its digits is 14112, while the sum is 33.

The square root of 27312738 is about 5226.1590102101. The cubic root of 27312738 is about 301.1538453358.

The spelling of 27312738 in words is "twenty-seven million, three hundred twelve thousand, seven hundred thirty-eight".