6401217 has 4 divisors (see below), whose sum is σ = 8534960. Its totient is φ = 4267476.

The previous prime is 6401203. The next prime is 6401249. The reversal of 6401217 is 7121046.

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 6401217 - 2¹⁰ = 6400193 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6401193 and 6401202.

It is not an unprimeable number, because it can be changed into a prime (6401267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1066867 + ... + 1066872.

It is an arithmetic number, because the mean of its divisors is an integer number (2133740).

Almost surely, 2^6401217 is an apocalyptic number.

It is an amenable number.

6401217 is a deficient number, since it is larger than the sum of its proper divisors (2133743).

6401217 is a wasteful number, since it uses less digits than its factorization.

6401217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133742.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 6401217 is about 2530.0626474457. The cubic root of 6401217 is about 185.6753209603.

The spelling of 6401217 in words is "six million, four hundred one thousand, two hundred seventeen".