5456789 has 4 divisors (see below), whose sum is σ = 5876556. Its totient is φ = 5037024.

The previous prime is 5456783. The next prime is 5456791. The reversal of 5456789 is 9876545.

5456789 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 550564 + 4906225 = 742^2 + 2215^2 .

It is a cyclic number.

It is not a de Polignac number, because 5456789 - 2⁸ = 5456533 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5456783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209864 + ... + 209889.

It is an arithmetic number, because the mean of its divisors is an integer number (1469139).

Almost surely, 2^5456789 is an apocalyptic number.

It is an amenable number.

5456789 is a deficient number, since it is larger than the sum of its proper divisors (419767).

5456789 is a wasteful number, since it uses less digits than its factorization.

5456789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419766.

The product of its digits is 302400, while the sum is 44.

The square root of 5456789 is about 2335.9770974905. The cubic root of 5456789 is about 176.0539284637.

The spelling of 5456789 in words is "five million, four hundred fifty-six thousand, seven hundred eighty-nine".