447890345 has 8 divisors (see below), whose sum is σ = 614249664. Its totient is φ = 307124784.

The previous prime is 447890341. The next prime is 447890351. The reversal of 447890345 is 543098744.

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 447890345 - 2² = 447890341 is a prime.

It is a super-2 number, since 2×447890345² = 401211522288438050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 447890296 and 447890305.

It is not an unprimeable number, because it can be changed into a prime (447890341) 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, 6398399 + ... + 6398468.

It is an arithmetic number, because the mean of its divisors is an integer number (76781208).

Almost surely, 2^447890345 is an apocalyptic number.

It is an amenable number.

447890345 is a deficient number, since it is larger than the sum of its proper divisors (166359319).

447890345 is a wasteful number, since it uses less digits than its factorization.

447890345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12796879.

The product of its (nonzero) digits is 483840, while the sum is 44.

The square root of 447890345 is about 21163.4199740968. The cubic root of 447890345 is about 765.1100387085.

The spelling of 447890345 in words is "four hundred forty-seven million, eight hundred ninety thousand, three hundred forty-five".