449657 has 4 divisors (see below), whose sum is σ = 484260. Its totient is φ = 415056.

The previous prime is 449653. The next prime is 449663. The reversal of 449657 is 756944.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19321 + 430336 = 139^2 + 656^2 .

It is a cyclic number.

It is not a de Polignac number, because 449657 - 2² = 449653 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (449653) 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, 17282 + ... + 17307.

It is an arithmetic number, because the mean of its divisors is an integer number (121065).

2⁴⁴⁹⁶⁵⁷ is an apocalyptic number.

It is an amenable number.

449657 is a deficient number, since it is larger than the sum of its proper divisors (34603).

449657 is a wasteful number, since it uses less digits than its factorization.

449657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34602.

The product of its digits is 30240, while the sum is 35.

The square root of 449657 is about 670.5646874091. The cubic root of 449657 is about 76.6114683545.

The spelling of 449657 in words is "four hundred forty-nine thousand, six hundred fifty-seven".