449687 has 8 divisors (see below), whose sum is σ = 518016. Its totient is φ = 382392.

The previous prime is 449681. The next prime is 449689. The reversal of 449687 is 786944.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 449687 - 2⁴ = 449671 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 449687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1448 + ... + 1730.

It is an arithmetic number, because the mean of its divisors is an integer number (64752).

2⁴⁴⁹⁶⁸⁷ is an apocalyptic number.

449687 is a deficient number, since it is larger than the sum of its proper divisors (68329).

449687 is a wasteful number, since it uses less digits than its factorization.

449687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517.

The product of its digits is 48384, while the sum is 38.

The square root of 449687 is about 670.5870562425. The cubic root of 449687 is about 76.6131720923.

The spelling of 449687 in words is "four hundred forty-nine thousand, six hundred eighty-seven".