27173045 has 8 divisors (see below), whose sum is σ = 32676000. Its totient is φ = 21692880.

The previous prime is 27173023. The next prime is 27173053. The reversal of 27173045 is 54037172.

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

It is a de Polignac number, because none of the positive numbers 2^k-27173045 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27172999 and 27173017.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2951 + ... + 7940.

It is an arithmetic number, because the mean of its divisors is an integer number (4084500).

Almost surely, 2^27173045 is an apocalyptic number.

It is an amenable number.

27173045 is a deficient number, since it is larger than the sum of its proper divisors (5502955).

27173045 is a wasteful number, since it uses less digits than its factorization.

27173045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11395.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 27173045 is about 5212.7770909564. Note that the first 3 decimals coincide. The cubic root of 27173045 is about 300.6395430542.

The spelling of 27173045 in words is "twenty-seven million, one hundred seventy-three thousand, forty-five".