6534789 has 4 divisors (see below), whose sum is σ = 8713056. Its totient is φ = 4356524.

The previous prime is 6534757. The next prime is 6534791. The reversal of 6534789 is 9874356.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6534789 - 2⁵ = 6534757 is a prime.

It is a D-number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6534789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6534709) 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, 1089129 + ... + 1089134.

It is an arithmetic number, because the mean of its divisors is an integer number (2178264).

Almost surely, 2^6534789 is an apocalyptic number.

It is an amenable number.

6534789 is a deficient number, since it is larger than the sum of its proper divisors (2178267).

6534789 is a wasteful number, since it uses less digits than its factorization.

6534789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2178266.

The product of its digits is 181440, while the sum is 42.

The square root of 6534789 is about 2556.3233363563. The cubic root of 6534789 is about 186.9579151674.

The spelling of 6534789 in words is "six million, five hundred thirty-four thousand, seven hundred eighty-nine".