6449723 has 6 divisors (see below), whose sum is σ = 7502796. Its totient is φ = 5528292.

The previous prime is 6449719. The next prime is 6449731. The reversal of 6449723 is 3279446.

It is not a de Polignac number, because 6449723 - 2² = 6449719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6449743) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65765 + ... + 65862.

It is an arithmetic number, because the mean of its divisors is an integer number (1250466).

Almost surely, 2^6449723 is an apocalyptic number.

6449723 is a deficient number, since it is larger than the sum of its proper divisors (1053073).

6449723 is a wasteful number, since it uses less digits than its factorization.

6449723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131641 (or 131634 counting only the distinct ones).

The product of its digits is 36288, while the sum is 35.

The square root of 6449723 is about 2539.6304849328. The cubic root of 6449723 is about 186.1431337454.

The spelling of 6449723 in words is "six million, four hundred forty-nine thousand, seven hundred twenty-three".