6406966 has 4 divisors (see below), whose sum is σ = 9610452. Its totient is φ = 3203482.

The previous prime is 6406951. The next prime is 6406973. The reversal of 6406966 is 6696046.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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, 1601740 + ... + 1601743.

It is an arithmetic number, because the mean of its divisors is an integer number (2402613).

Almost surely, 2^6406966 is an apocalyptic number.

6406966 is a deficient number, since it is larger than the sum of its proper divisors (3203486).

6406966 is a wasteful number, since it uses less digits than its factorization.

6406966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3203485.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 6406966 is about 2531.1985303409. The cubic root of 6406966 is about 185.7308899778.

The spelling of 6406966 in words is "six million, four hundred six thousand, nine hundred sixty-six".