6446967 has 4 divisors (see below), whose sum is σ = 8595960. Its totient is φ = 4297976.

The previous prime is 6446939. The next prime is 6446971. The reversal of 6446967 is 7696446.

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

It is a cyclic number.

It is not a de Polignac number, because 6446967 - 2⁸ = 6446711 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6446987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1074492 + ... + 1074497.

It is an arithmetic number, because the mean of its divisors is an integer number (2148990).

Almost surely, 2^6446967 is an apocalyptic number.

6446967 is a deficient number, since it is larger than the sum of its proper divisors (2148993).

6446967 is a wasteful number, since it uses less digits than its factorization.

6446967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2148992.

The product of its digits is 217728, while the sum is 42.

The square root of 6446967 is about 2539.0878283352. The cubic root of 6446967 is about 186.1166166601.

The spelling of 6446967 in words is "six million, four hundred forty-six thousand, nine hundred sixty-seven".