447986 has 16 divisors (see below), whose sum is σ = 838080. Its totient is φ = 174480.

The previous prime is 447983. The next prime is 447991. The reversal of 447986 is 689744.

447986 = T₁₄₈ + T₁₄₉ + ... + T₁₈₀.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (447983) 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, 1301 + ... + 1608.

It is an arithmetic number, because the mean of its divisors is an integer number (52380).

2⁴⁴⁷⁹⁸⁶ is an apocalyptic number.

447986 is a deficient number, since it is larger than the sum of its proper divisors (390094).

447986 is a wasteful number, since it uses less digits than its factorization.

447986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2929.

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

The square root of 447986 is about 669.3175628952. The cubic root of 447986 is about 76.5164502479.

The spelling of 447986 in words is "four hundred forty-seven thousand, nine hundred eighty-six".