6426289 has 8 divisors (see below), whose sum is σ = 6916968. Its totient is φ = 5948160.

The previous prime is 6426257. The next prime is 6426311. The reversal of 6426289 is 9826246.

It can be written as a sum of positive squares in 4 ways, for example, as 216225 + 6210064 = 465^2 + 2492^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6426289 - 2⁵ = 6426257 is a prime.

It is a Duffinian number.

6426289 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6426229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2062 + ... + 4135.

It is an arithmetic number, because the mean of its divisors is an integer number (864621).

Almost surely, 2^6426289 is an apocalyptic number.

It is an amenable number.

6426289 is a deficient number, since it is larger than the sum of its proper divisors (490679).

6426289 is a wasteful number, since it uses less digits than its factorization.

6426289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6275.

The product of its digits is 41472, while the sum is 37.

The square root of 6426289 is about 2535.0126232427. The cubic root of 6426289 is about 185.9174200805.

The spelling of 6426289 in words is "six million, four hundred twenty-six thousand, two hundred eighty-nine".