27319945 has 8 divisors (see below), whose sum is σ = 32828544. Its totient is φ = 21826224.

The previous prime is 27319939. The next prime is 27319993. The reversal of 27319945 is 54991372.

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 27319945 - 2³ = 27319937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27319898 and 27319907.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 832 + ... + 7438.

It is an arithmetic number, because the mean of its divisors is an integer number (4103568).

Almost surely, 2^27319945 is an apocalyptic number.

It is an amenable number.

27319945 is a deficient number, since it is larger than the sum of its proper divisors (5508599).

27319945 is an equidigital number, since it uses as much as digits as its factorization.

27319945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7439.

The product of its digits is 68040, while the sum is 40.

The square root of 27319945 is about 5226.8484768549. The cubic root of 27319945 is about 301.1803314499.

The spelling of 27319945 in words is "twenty-seven million, three hundred nineteen thousand, nine hundred forty-five".