6420033 has 32 divisors (see below), whose sum is σ = 10264320. Its totient is φ = 3951360.

The previous prime is 6420031. The next prime is 6420041. The reversal of 6420033 is 3300246.

It is not a de Polignac number, because 6420033 - 2¹ = 6420031 is a prime.

It is a super-3 number, since 3×6420033³ (a number of 21 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6419988 and 6420015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6420031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32491 + ... + 32687.

It is an arithmetic number, because the mean of its divisors is an integer number (320760).

Almost surely, 2^6420033 is an apocalyptic number.

It is an amenable number.

6420033 is a deficient number, since it is larger than the sum of its proper divisors (3844287).

6420033 is a wasteful number, since it uses less digits than its factorization.

6420033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294 (or 288 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 6420033 is about 2533.7784038862. The cubic root of 6420033 is about 185.8570702160.

Adding to 6420033 its reverse (3300246), we get a palindrome (9720279).

The spelling of 6420033 in words is "six million, four hundred twenty thousand, thirty-three".