447078147 has 8 divisors (see below), whose sum is σ = 608787456. Its totient is φ = 291710472.

The previous prime is 447078139. The next prime is 447078197. The reversal of 447078147 is 741870744.

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

It is not a de Polignac number, because 447078147 - 2³ = 447078139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 447078099 and 447078108.

It is not an unprimeable number, because it can be changed into a prime (447078127) 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, 1585243 + ... + 1585524.

It is an arithmetic number, because the mean of its divisors is an integer number (76098432).

Almost surely, 2^447078147 is an apocalyptic number.

447078147 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

447078147 is a deficient number, since it is larger than the sum of its proper divisors (161709309).

447078147 is a wasteful number, since it uses less digits than its factorization.

447078147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3170817.

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

The square root of 447078147 is about 21144.2225442318. Note that the first 3 decimals coincide. The cubic root of 447078147 is about 764.6472789771.

The spelling of 447078147 in words is "four hundred forty-seven million, seventy-eight thousand, one hundred forty-seven".