6449867 has 8 divisors (see below), whose sum is σ = 6769824. Its totient is φ = 6133248.

The previous prime is 6449837. The next prime is 6449881. The reversal of 6449867 is 7689446.

6449867 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6449867 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6449827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3713 + ... + 5165.

It is an arithmetic number, because the mean of its divisors is an integer number (846228).

Almost surely, 2^6449867 is an apocalyptic number.

6449867 is a deficient number, since it is larger than the sum of its proper divisors (319957).

6449867 is a wasteful number, since it uses less digits than its factorization.

6449867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1669.

The product of its digits is 290304, while the sum is 44.

The square root of 6449867 is about 2539.6588353556. The cubic root of 6449867 is about 186.1445190458.

The spelling of 6449867 in words is "six million, four hundred forty-nine thousand, eight hundred sixty-seven".