6449893 has 4 divisors (see below), whose sum is σ = 6477120. Its totient is φ = 6422668.

The previous prime is 6449887. The next prime is 6449897. The reversal of 6449893 is 3989446.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6449893 is a prime.

It is a super-2 number, since 2×6449893² = 83202239422898, which contains 22 as substring.

It is a Duffinian number.

6449893 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6449897) 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, 13255 + ... + 13732.

It is an arithmetic number, because the mean of its divisors is an integer number (1619280).

Almost surely, 2^6449893 is an apocalyptic number.

It is an amenable number.

6449893 is a deficient number, since it is larger than the sum of its proper divisors (27227).

6449893 is a wasteful number, since it uses less digits than its factorization.

6449893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27226.

The product of its digits is 186624, while the sum is 43.

The square root of 6449893 is about 2539.6639541483. The cubic root of 6449893 is about 186.1447691673.

The spelling of 6449893 in words is "six million, four hundred forty-nine thousand, eight hundred ninety-three".