27956069 has 8 divisors (see below), whose sum is σ = 28615680. Its totient is φ = 27301456.

The previous prime is 27955999. The next prime is 27956077. The reversal of 27956069 is 96065972.

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 27956069 - 2⁸ = 27955813 is a prime.

It is a super-2 number, since 2×27956069² = 1563083587865522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27959069) 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, 11564 + ... + 13770.

It is an arithmetic number, because the mean of its divisors is an integer number (3576960).

Almost surely, 2^27956069 is an apocalyptic number.

It is an amenable number.

27956069 is a deficient number, since it is larger than the sum of its proper divisors (659611).

27956069 is a wasteful number, since it uses less digits than its factorization.

27956069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2499.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 27956069 is about 5287.3499033069. The cubic root of 27956069 is about 303.5000040711.

The spelling of 27956069 in words is "twenty-seven million, nine hundred fifty-six thousand, sixty-nine".