27705345 has 8 divisors (see below), whose sum is σ = 44328576. Its totient is φ = 14776176.

The previous prime is 27705323. The next prime is 27705361. The reversal of 27705345 is 54350772.

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

It is not a de Polignac number, because 27705345 - 2⁵ = 27705313 is a prime.

It is a super-2 number, since 2×27705345² = 1535172283138050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 923497 + ... + 923526.

It is an arithmetic number, because the mean of its divisors is an integer number (5541072).

It is a Proth number, since it is equal to 1691 ⋅ 2¹⁴ + 1 and 1691 < 2¹⁴.

Almost surely, 2^27705345 is an apocalyptic number.

It is an amenable number.

27705345 is a deficient number, since it is larger than the sum of its proper divisors (16623231).

27705345 is a wasteful number, since it uses less digits than its factorization.

27705345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1847031.

The product of its (nonzero) digits is 29400, while the sum is 33.

The square root of 27705345 is about 5263.5867049000. The cubic root of 27705345 is about 302.5899648176.

The spelling of 27705345 in words is "twenty-seven million, seven hundred five thousand, three hundred forty-five".