6443293 has 2 divisors, whose sum is σ = 6443294. Its totient is φ = 6443292.

The previous prime is 6443287. The next prime is 6443329. The reversal of 6443293 is 3923446.

Together with next prime (6443329) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6441444 + 1849 = 2538^2 + 43^2 .

It is a cyclic number.

It is not a de Polignac number, because 6443293 - 2¹⁷ = 6312221 is a prime.

It is a d-powerful number, because it can be written as 6³ + 4 + 4⁸ + 3⁵ + 2 + 9⁷ + 3¹³ .

6443293 is a lucky number.

It is a plaindrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6443893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3221646 + 3221647.

It is an arithmetic number, because the mean of its divisors is an integer number (3221647).

Almost surely, 2^6443293 is an apocalyptic number.

It is an amenable number.

6443293 is a deficient number, since it is larger than the sum of its proper divisors (1).

6443293 is an equidigital number, since it uses as much as digits as its factorization.

6443293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 31.

The square root of 6443293 is about 2538.3642370629. The cubic root of 6443293 is about 186.0812552060.

The spelling of 6443293 in words is "six million, four hundred forty-three thousand, two hundred ninety-three".