27797755 has 8 divisors (see below), whose sum is σ = 33447600. Its totient is φ = 22178016.

The previous prime is 27797753. The next prime is 27797827. The reversal of 27797755 is 55779772.

It is a happy number.

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 27797755 - 2¹ = 27797753 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27797699 and 27797708.

It is not an unprimeable number, because it can be changed into a prime (27797753) by changing a digit.

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, 5440 + ... + 9229.

It is an arithmetic number, because the mean of its divisors is an integer number (4180950).

Almost surely, 2^27797755 is an apocalyptic number.

27797755 is a deficient number, since it is larger than the sum of its proper divisors (5649845).

27797755 is a wasteful number, since it uses less digits than its factorization.

27797755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15053.

The product of its digits is 1080450, while the sum is 49.

The square root of 27797755 is about 5272.3576320276. The cubic root of 27797755 is about 302.9260167848.

The spelling of 27797755 in words is "twenty-seven million, seven hundred ninety-seven thousand, seven hundred fifty-five".