447490387 has 8 divisors (see below), whose sum is σ = 469832400. Its totient is φ = 425609184.

The previous prime is 447490343. The next prime is 447490399. The reversal of 447490387 is 783094744.

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 447490387 - 2⁷ = 447490259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (447490787) 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, 113212 + ... + 117097.

It is an arithmetic number, because the mean of its divisors is an integer number (58729050).

Almost surely, 2^447490387 is an apocalyptic number.

447490387 is a deficient number, since it is larger than the sum of its proper divisors (22342013).

447490387 is a wasteful number, since it uses less digits than its factorization.

447490387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230405.

The product of its (nonzero) digits is 677376, while the sum is 46.

The square root of 447490387 is about 21153.9685874779. The cubic root of 447490387 is about 764.8822277297.

The spelling of 447490387 in words is "four hundred forty-seven million, four hundred ninety thousand, three hundred eighty-seven".