6387433 has 4 divisors (see below), whose sum is σ = 6878788. Its totient is φ = 5896080.

The previous prime is 6387413. The next prime is 6387449. The reversal of 6387433 is 3347836.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1225449 + 5161984 = 1107^2 + 2272^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6387433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6387413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245658 + ... + 245683.

It is an arithmetic number, because the mean of its divisors is an integer number (1719697).

Almost surely, 2^6387433 is an apocalyptic number.

It is an amenable number.

6387433 is a deficient number, since it is larger than the sum of its proper divisors (491355).

6387433 is a wasteful number, since it uses less digits than its factorization.

6387433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491354.

The product of its digits is 36288, while the sum is 34.

The square root of 6387433 is about 2527.3371361969. The cubic root of 6387433 is about 185.5419511196.

The spelling of 6387433 in words is "six million, three hundred eighty-seven thousand, four hundred thirty-three".