6449015 has 4 divisors (see below), whose sum is σ = 7738824. Its totient is φ = 5159208.

The previous prime is 6448979. The next prime is 6449021. The reversal of 6449015 is 5109446.

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 6449015 - 2¹⁴ = 6432631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 644897 + ... + 644906.

It is an arithmetic number, because the mean of its divisors is an integer number (1934706).

Almost surely, 2^6449015 is an apocalyptic number.

6449015 is a deficient number, since it is larger than the sum of its proper divisors (1289809).

6449015 is a wasteful number, since it uses less digits than its factorization.

6449015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289808.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 6449015 is about 2539.4910907503. The cubic root of 6449015 is about 186.1363223852.

The spelling of 6449015 in words is "six million, four hundred forty-nine thousand, fifteen".