6403001 has 8 divisors (see below), whose sum is σ = 7148064. Its totient is φ = 5685120.

The previous prime is 6402973. The next prime is 6403003. The reversal of 6403001 is 1003046.

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 6403001 - 2⁶ = 6402937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6403003) 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 7 ways as a sum of consecutive naturals, for example, 6296 + ... + 7241.

It is an arithmetic number, because the mean of its divisors is an integer number (893508).

Almost surely, 2^6403001 is an apocalyptic number.

It is an amenable number.

6403001 is a deficient number, since it is larger than the sum of its proper divisors (745063).

6403001 is a wasteful number, since it uses less digits than its factorization.

6403001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13591.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 6403001 is about 2530.4151833247. The cubic root of 6403001 is about 185.6925684101.

Adding to 6403001 its reverse (1003046), we get a palindrome (7406047).

The spelling of 6403001 in words is "six million, four hundred three thousand, one".