6550789 has 4 divisors (see below), whose sum is σ = 7486624. Its totient is φ = 5614956.

The previous prime is 6550783. The next prime is 6550793. The reversal of 6550789 is 9870556.

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 6550789 - 2⁵ = 6550757 is a prime.

It is a super-3 number, since 3×6550789³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

6550789 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6550783) 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, 467907 + ... + 467920.

It is an arithmetic number, because the mean of its divisors is an integer number (1871656).

Almost surely, 2^6550789 is an apocalyptic number.

It is an amenable number.

6550789 is a deficient number, since it is larger than the sum of its proper divisors (935835).

6550789 is an equidigital number, since it uses as much as digits as its factorization.

6550789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935834.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 6550789 is about 2559.4509176775. The cubic root of 6550789 is about 187.1103755148.

The spelling of 6550789 in words is "six million, five hundred fifty thousand, seven hundred eighty-nine".