447147078 has 16 divisors (see below), whose sum is σ = 1022050560. Its totient is φ = 127756296.

The previous prime is 447146963. The next prime is 447147091. The reversal of 447147078 is 870741744.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 10646359 = 447147078 / (4 + 4 + 7 + 1 + 4 + 7 + 0 + 7 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5323138 + ... + 5323221.

It is an arithmetic number, because the mean of its divisors is an integer number (63878160).

Almost surely, 2^447147078 is an apocalyptic number.

447147078 is an abundant number, since it is smaller than the sum of its proper divisors (574903482).

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

447147078 is a wasteful number, since it uses less digits than its factorization.

447147078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10646371.

The product of its (nonzero) digits is 175616, while the sum is 42.

The square root of 447147078 is about 21145.8525011407. The cubic root of 447147078 is about 764.6865750102.

The spelling of 447147078 in words is "four hundred forty-seven million, one hundred forty-seven thousand, seventy-eight".