6406996 has 6 divisors (see below), whose sum is σ = 11212250. Its totient is φ = 3203496.

The previous prime is 6406973. The next prime is 6406997. The reversal of 6406996 is 6996046.

It can be written as a sum of positive squares in only one way, i.e., 6002500 + 404496 = 2450^2 + 636^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6406997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800871 + ... + 800878.

Almost surely, 2^6406996 is an apocalyptic number.

It is an amenable number.

6406996 is a deficient number, since it is larger than the sum of its proper divisors (4805254).

6406996 is a wasteful number, since it uses less digits than its factorization.

6406996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601753 (or 1601751 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 6406996 is about 2531.2044563804. The cubic root of 6406996 is about 185.7311798663.

The spelling of 6406996 in words is "six million, four hundred six thousand, nine hundred ninety-six".