27920769 has 8 divisors (see below), whose sum is σ = 37363200. Its totient is φ = 18546096.

The previous prime is 27920719. The next prime is 27920779. The reversal of 27920769 is 96702972.

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

It is not a de Polignac number, because 27920769 - 2⁹ = 27920257 is a prime.

It is a super-2 number, since 2×27920769² = 1559138683102722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27920769.

It is not an unprimeable number, because it can be changed into a prime (27920719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15969 + ... + 17630.

It is an arithmetic number, because the mean of its divisors is an integer number (4670400).

Almost surely, 2^27920769 is an apocalyptic number.

It is an amenable number.

27920769 is a deficient number, since it is larger than the sum of its proper divisors (9442431).

27920769 is a wasteful number, since it uses less digits than its factorization.

27920769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33879.

The product of its (nonzero) digits is 95256, while the sum is 42.

The square root of 27920769 is about 5284.0106926463. The cubic root of 27920769 is about 303.3722075793.

The spelling of 27920769 in words is "twenty-seven million, nine hundred twenty thousand, seven hundred sixty-nine".