6401913 has 16 divisors (see below), whose sum is σ = 9922560. Its totient is φ = 3595536.

The previous prime is 6401893. The next prime is 6401921. The reversal of 6401913 is 3191046.

It is not a de Polignac number, because 6401913 - 2⁶ = 6401849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6401933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1345 + ... + 3822.

It is an arithmetic number, because the mean of its divisors is an integer number (620160).

Almost surely, 2^6401913 is an apocalyptic number.

It is an amenable number.

6401913 is a deficient number, since it is larger than the sum of its proper divisors (3520647).

6401913 is a wasteful number, since it uses less digits than its factorization.

6401913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5236.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 6401913 is about 2530.2001897083. The cubic root of 6401913 is about 185.6820501672.

Adding to 6401913 its reverse (3191046), we get a palindrome (9592959).

The spelling of 6401913 in words is "six million, four hundred one thousand, nine hundred thirteen".