6640496 has 10 divisors (see below), whose sum is σ = 12865992. Its totient is φ = 3320240.

The previous prime is 6640493. The next prime is 6640499. The reversal of 6640496 is 6940466.

It is an interprime number because it is at equal distance from previous prime (6640493) and next prime (6640499).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6640493) 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, 207500 + ... + 207531.

Almost surely, 2^6640496 is an apocalyptic number.

It is an amenable number.

6640496 is a deficient number, since it is larger than the sum of its proper divisors (6225496).

6640496 is a wasteful number, since it uses less digits than its factorization.

6640496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415039 (or 415033 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 6640496 is about 2576.9159862130. The cubic root of 6640496 is about 187.9606074096.

The spelling of 6640496 in words is "six million, six hundred forty thousand, four hundred ninety-six".