56827691 has 4 divisors (see below), whose sum is σ = 56842800. Its totient is φ = 56812584.

The previous prime is 56827637. The next prime is 56827703. The reversal of 56827691 is 19672865.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 56827691 - 2¹⁰ = 56826667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56827391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3050 + ... + 11088.

It is an arithmetic number, because the mean of its divisors is an integer number (14210700).

Almost surely, 2^56827691 is an apocalyptic number.

56827691 is a deficient number, since it is larger than the sum of its proper divisors (15109).

56827691 is an equidigital number, since it uses as much as digits as its factorization.

56827691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15108.

The product of its digits is 181440, while the sum is 44.

The square root of 56827691 is about 7538.4143558178. The cubic root of 56827691 is about 384.4619255759.

The spelling of 56827691 in words is "fifty-six million, eight hundred twenty-seven thousand, six hundred ninety-one".