6449263 has 4 divisors (see below), whose sum is σ = 6456240. Its totient is φ = 6442288.

The previous prime is 6449257. The next prime is 6449309. The reversal of 6449263 is 3629446.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6449263 - 2²¹ = 4352111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6449213) 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, 1843 + ... + 4036.

It is an arithmetic number, because the mean of its divisors is an integer number (1614060).

Almost surely, 2^6449263 is an apocalyptic number.

6449263 is a deficient number, since it is larger than the sum of its proper divisors (6977).

6449263 is a wasteful number, since it uses less digits than its factorization.

6449263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6976.

The product of its digits is 31104, while the sum is 34.

The square root of 6449263 is about 2539.5399189617. The cubic root of 6449263 is about 186.1387083421.

The spelling of 6449263 in words is "six million, four hundred forty-nine thousand, two hundred sixty-three".