6389433 has 12 divisors (see below), whose sum is σ = 9772308. Its totient is φ = 4008960.

The previous prime is 6389431. The next prime is 6389443. The reversal of 6389433 is 3349836.

It can be written as a sum of positive squares in 2 ways, for example, as 1710864 + 4678569 = 1308^2 + 2163^2 .

It is not a de Polignac number, because 6389433 - 2¹ = 6389431 is a prime.

It is a super-2 number, since 2×6389433² = 81649708122978, which contains 22 as substring.

6389433 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6389431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20728 + ... + 21033.

It is an arithmetic number, because the mean of its divisors is an integer number (814359).

Almost surely, 2^6389433 is an apocalyptic number.

It is an amenable number.

6389433 is a deficient number, since it is larger than the sum of its proper divisors (3382875).

6389433 is a wasteful number, since it uses less digits than its factorization.

6389433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41784 (or 41781 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 6389433 is about 2527.7327785982. The cubic root of 6389433 is about 185.5613144110.

The spelling of 6389433 in words is "six million, three hundred eighty-nine thousand, four hundred thirty-three".