6730401 has 4 divisors (see below), whose sum is σ = 8973872. Its totient is φ = 4486932.

The previous prime is 6730391. The next prime is 6730463. The reversal of 6730401 is 1040376.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6730401 - 2⁵ = 6730369 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6730481) 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 3 ways as a sum of consecutive naturals, for example, 1121731 + ... + 1121736.

It is an arithmetic number, because the mean of its divisors is an integer number (2243468).

Almost surely, 2^6730401 is an apocalyptic number.

It is an amenable number.

6730401 is a deficient number, since it is larger than the sum of its proper divisors (2243471).

6730401 is a wasteful number, since it uses less digits than its factorization.

6730401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2243470.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 6730401 is about 2594.3016401336. The cubic root of 6730401 is about 188.8050676277.

Adding to 6730401 its reverse (1040376), we get a palindrome (7770777).

The spelling of 6730401 in words is "six million, seven hundred thirty thousand, four hundred one".