27770245 has 8 divisors (see below), whose sum is σ = 33636384. Its totient is φ = 22008144.

The previous prime is 27770221. The next prime is 27770261. The reversal of 27770245 is 54207772.

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 27770245 - 2⁷ = 27770117 is a prime.

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 27770245.

It is a congruent 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, 25419 + ... + 26488.

It is an arithmetic number, because the mean of its divisors is an integer number (4204548).

Almost surely, 2^27770245 is an apocalyptic number.

It is an amenable number.

27770245 is a deficient number, since it is larger than the sum of its proper divisors (5866139).

27770245 is a wasteful number, since it uses less digits than its factorization.

27770245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52019.

The product of its (nonzero) digits is 27440, while the sum is 34.

The square root of 27770245 is about 5269.7480964464. The cubic root of 27770245 is about 302.8260537325.

The spelling of 27770245 in words is "twenty-seven million, seven hundred seventy thousand, two hundred forty-five".