6401116 has 6 divisors (see below), whose sum is σ = 11201960. Its totient is φ = 3200556.

The previous prime is 6401093. The next prime is 6401117. The reversal of 6401116 is 6111046.

It is a happy number.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 6401093 and 6401102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6401117) 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 as a sum of consecutive naturals, namely, 800136 + ... + 800143.

Almost surely, 2^6401116 is an apocalyptic number.

It is an amenable number.

6401116 is a deficient number, since it is larger than the sum of its proper divisors (4800844).

6401116 is a wasteful number, since it uses less digits than its factorization.

6401116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600283 (or 1600281 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 6401116 is about 2530.0426873869. The cubic root of 6401116 is about 185.6743444113.

The spelling of 6401116 in words is "six million, four hundred one thousand, one hundred sixteen".