27315745 has 8 divisors (see below), whose sum is σ = 33018984. Its totient is φ = 21692544.

The previous prime is 27315737. The next prime is 27315763. The reversal of 27315745 is 54751372.

It can be written as a sum of positive squares in 4 ways, for example, as 772641 + 26543104 = 879^2 + 5152^2 .

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 27315745 - 2³ = 27315737 is a prime.

It is a super-2 number, since 2×27315745² = 1492299849810050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27315745.

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, 19254 + ... + 20623.

It is an arithmetic number, because the mean of its divisors is an integer number (4127373).

Almost surely, 2^27315745 is an apocalyptic number.

It is an amenable number.

27315745 is a deficient number, since it is larger than the sum of its proper divisors (5703239).

27315745 is a wasteful number, since it uses less digits than its factorization.

27315745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40019.

The product of its digits is 29400, while the sum is 34.

The square root of 27315745 is about 5226.4466896736. The cubic root of 27315745 is about 301.1648967895.

The spelling of 27315745 in words is "twenty-seven million, three hundred fifteen thousand, seven hundred forty-five".