447980 has 24 divisors (see below), whose sum is σ = 1013712. Its totient is φ = 165312.

The previous prime is 447961. The next prime is 447983. The reversal of 447980 is 89744.

447980 = T₂₅₆ + T₂₅₇ + ... + T₂₆₈.

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, 602 + ... + 1121.

It is an arithmetic number, because the mean of its divisors is an integer number (42238).

2⁴⁴⁷⁹⁸⁰ is an apocalyptic number.

It is an amenable number.

447980 is an abundant number, since it is smaller than the sum of its proper divisors (565732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

447980 is a wasteful number, since it uses less digits than its factorization.

447980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1745 (or 1743 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 447980 is about 669.3130807029. The cubic root of 447980 is about 76.5161086444.

The spelling of 447980 in words is "four hundred forty-seven thousand, nine hundred eighty".