56827789 has 2 divisors, whose sum is σ = 56827790. Its totient is φ = 56827788.

The previous prime is 56827769. The next prime is 56827847. The reversal of 56827789 is 98772865.

56827789 is nontrivially palindromic in base 15.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47155689 + 9672100 = 6867^2 + 3110^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56827789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56827709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28413894 + 28413895.

It is an arithmetic number, because the mean of its divisors is an integer number (28413895).

Almost surely, 2^56827789 is an apocalyptic number.

It is an amenable number.

56827789 is a deficient number, since it is larger than the sum of its proper divisors (1).

56827789 is an equidigital number, since it uses as much as digits as its factorization.

56827789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1693440, while the sum is 52.

The square root of 56827789 is about 7538.4208558557. The cubic root of 56827789 is about 384.4621465788.

It can be divided in two parts, 568277 and 89, that multiplied together give a triangular number (50576653 = T₁₀₀₅₇).

The spelling of 56827789 in words is "fifty-six million, eight hundred twenty-seven thousand, seven hundred eighty-nine".