27068645 has 8 divisors (see below), whose sum is σ = 33360504. Its totient is φ = 21069504.

The previous prime is 27068633. The next prime is 27068647. The reversal of 27068645 is 54686072.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15358561 + 11710084 = 3919^2 + 3422^2 .

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 27068645 - 2⁶ = 27068581 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27068599 and 27068608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27068647) 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, 72974 + ... + 73343.

It is an arithmetic number, because the mean of its divisors is an integer number (4170063).

Almost surely, 2^27068645 is an apocalyptic number.

It is an amenable number.

27068645 is a deficient number, since it is larger than the sum of its proper divisors (6291859).

27068645 is a wasteful number, since it uses less digits than its factorization.

27068645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146359.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 27068645 is about 5202.7535978557. The cubic root of 27068645 is about 300.2540255834.

The spelling of 27068645 in words is "twenty-seven million, sixty-eight thousand, six hundred forty-five".