449779 has 8 divisors (see below), whose sum is σ = 506880. Its totient is φ = 395400.

The previous prime is 449773. The next prime is 449783. The reversal of 449779 is 977944.

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 449779 - 2¹³ = 441587 is a prime.

It is a super-2 number, since 2×449779² = 404602297682, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (449773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319 + ... + 1000.

It is an arithmetic number, because the mean of its divisors is an integer number (63360).

2⁴⁴⁹⁷⁷⁹ is an apocalyptic number.

449779 is a deficient number, since it is larger than the sum of its proper divisors (57101).

449779 is a wasteful number, since it uses less digits than its factorization.

449779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361.

The product of its digits is 63504, while the sum is 40.

The square root of 449779 is about 670.6556493462. The cubic root of 449779 is about 76.6183964159.

The spelling of 449779 in words is "four hundred forty-nine thousand, seven hundred seventy-nine".